{"title":"Pentair FNS Plus DE Filters \u0026 Parts","description":"\u003cp\u003ePentair FNS Plus DE filters deliver the finest filtration of any filter type, trapping particles down to a few microns. Shop FNS Plus filters and replacement parts including DE grids, grid assemblies, manifolds, tank O-rings, clamps, air relief valves and drain caps.\u003c\/p\u003e\u003cp\u003eFNS Plus filters come in 36, 48 and 60 sq. ft. sizes, and grid sets are specific to each size. Torn grids let DE pass back into the pool, so if you see a cloud of DE after backwashing, check the grids first. Send us your filter size and we will match the right grids and parts.\u003c\/p\u003e\u003cp\u003eShips nationwide, with same-day pickup in Henderson, NV. Call 725-205-1783.\u003c\/p\u003e","products":[{"product_id":"pentair-59023300-vertical-grid-fns-plue-filter-cartridge","title":"Pentair FNS Plus Grid Assembly 60 sq-ft | 59023300","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eRestore your Pentair FNS Plus 60 D.E. filter’s filtration performance with the genuine Pentair 59023300 Complete Element Grid Assembly. This factory replacement assembly provides the complete internal grid cluster used to capture fine debris as water passes through the diatomaceous earth filter.\u003c\/p\u003e\n\u003cp\u003eDesigned for the 60-square-foot Pentair FNS Plus vertical-grid D.E. filter, this assembly offers a convenient alternative to replacing and rebuilding individual damaged grids. It is an ideal solution when multiple grids are torn, cracked, distorted, or no longer sealing correctly against the manifold.\u003c\/p\u003e\n\u003cp\u003eThe assembly uses 30-inch filter grids and provides 60 square feet of effective filtration area. Genuine Pentair construction helps maintain proper alignment, water distribution, and compatibility inside the designated filter tank.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eGenuine Pentair OEM replacement assembly\u003c\/p\u003e\n\u003cp\u003eComplete internal element grid assembly\u003c\/p\u003e\n\u003cp\u003eDesigned for Pentair FNS Plus 60 D.E. filters\u003c\/p\u003e\n\u003cp\u003eProvides 60 square feet of filtration area\u003c\/p\u003e\n\u003cp\u003eUses 30-inch vertical filter grids\u003c\/p\u003e\n\u003cp\u003eReplaces damaged, worn, or deteriorated grid clusters\u003c\/p\u003e\n\u003cp\u003eCaptures fine dirt and suspended debris\u003c\/p\u003e\n\u003cp\u003eHelps restore proper filtration and water clarity\u003c\/p\u003e\n\u003cp\u003eEliminates the need to assemble individual replacement grids\u003c\/p\u003e\n\u003cp\u003eManufactured for correct fit and alignment\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eComplete D.E. filter element grid assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003e59023300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltration Area\u003c\/td\u003e\n\u003ctd\u003e60 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid Height\u003c\/td\u003e\n\u003ctd\u003e30 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eVertical-grid diatomaceous earth filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter\u003c\/td\u003e\n\u003ctd\u003ePentair FNS Plus 60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Model\u003c\/td\u003e\n\u003ctd\u003eFNSP60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Location\u003c\/td\u003e\n\u003ctd\u003eInside filter tank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Type\u003c\/td\u003e\n\u003ctd\u003eGenuine OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eResidential pool and spa filtration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e788379681708\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e30 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (Shipping)\u003c\/td\u003e\n\u003ctd\u003e18 x 17.5 x 34.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003e\u003cstrong\u003eWarranty \u0026amp; Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003ePentair part 59023300 is designed for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePentair FNS Plus 60 D.E. Filter\u003c\/li\u003e\n\u003cli\u003ePentair model FNSP60\u003c\/li\u003e\n\u003cli\u003eCertain American Products\/Pentair Titan RPM 60-square-foot D.E. filter applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatibility should always be confirmed using the filter model and existing assembly part number before ordering. This assembly is not intended for 24-, 36-, or 48-square-foot FNS Plus filters.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhen to Replace the Grid Assembly\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eReplacement may be necessary when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eD.E. powder returns to the pool through the return lines\u003c\/li\u003e\n\u003cli\u003eMultiple grids are torn, cracked, or deteriorated\u003c\/li\u003e\n\u003cli\u003eThe grid assembly no longer sits correctly on the standpipe\u003c\/li\u003e\n\u003cli\u003eInternal components are distorted or difficult to align\u003c\/li\u003e\n\u003cli\u003ePool water remains cloudy despite correct chemistry and filter operation\u003c\/li\u003e\n\u003cli\u003eThe assembly has become brittle from age or chemical exposure\u003c\/li\u003e\n\u003cli\u003eReplacing individual grids is no longer practical or cost-effective\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBefore replacing the assembly, inspect the filter manifold, grids, standpipe, air-bleed components, and internal seals to identify the source of the filtration problem.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTurn off the circulation pump and release all pressure from the filter before opening the tank. Remove the existing assembly, clean the inside of the filter tank, and inspect the standpipe and related seals for damage.\u003c\/p\u003e\n\u003cp\u003ePosition the replacement grid assembly carefully over the standpipe and verify that it is fully seated before reinstalling the filter lid and clamp. After installation, recharge the filter with the correct amount of fresh D.E. powder according to the filter manufacturer’s instructions.\u003c\/p\u003e\n\u003cp\u003eProfessional installation is recommended if you are unfamiliar with pressurized pool filtration systems.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCustomer-Facing Q\u0026amp;A\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is 59023300 a complete grid assembly?\u003c\/strong\u003e\u003cbr\u003eA: Yes. This is the complete internal element grid assembly for the designated 60-square-foot filter application. It is intended to replace the assembled grid cluster rather than a single damaged grid.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this fit the Pentair FNS Plus 60?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Part 59023300 is the specified complete element grid assembly for the Pentair FNS Plus 60, model FNSP60.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will it fit an FNS Plus 48 filter?\u003c\/strong\u003e\u003cbr\u003eA: No. The FNS Plus 48 uses a different assembly. Pentair part 59023400 is specified for the 48-square-foot model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What size are the filter grids?\u003c\/strong\u003e\u003cbr\u003eA: The FNS Plus 60 assembly uses 30-inch grids and provides 60 square feet of filtration area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this include the filter tank or clamp?\u003c\/strong\u003e\u003cbr\u003eA: No. This product is the internal element grid assembly only. The filter tank, tank clamp, pressure gauge, valve, standpipe, and external plumbing are not included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need to add D.E. powder after installation?\u003c\/strong\u003e\u003cbr\u003eA: Yes. A D.E. filter must be charged with the manufacturer-recommended amount of fresh diatomaceous earth after the system is reassembled and started.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why is D.E. powder returning to the pool?\u003c\/strong\u003e\u003cbr\u003eA: Common causes include torn grids, a damaged manifold, improper assembly alignment, standpipe problems, or an internal seal failure. Inspect all related internal components before returning the filter to service.\u003c\/p\u003e\n\u003csection id=\"psd-manuals-sell-sheets\"\u003e\u003ch2\u003eManuals \u0026amp; Sell Sheets\u003c\/h2\u003e\n\u003cp\u003eManufacturer reference documents for this equipment family. Confirm your exact model and production revision before use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-install-guide-2025.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (2025 edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-vertical-grid-de-filter.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (previous edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48753724784950,"sku":"59023300","price":398.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/59023300-Complete-Grid-Assembly-for-FNS-Plus-60-Sq-Ft-D.E.jpg?v=1713842391"},{"product_id":"pentair-ec-180008-pentair-fns-plus-de-filter-48-sq-ft","title":"Pentair FNS Plus D.E. Filter, 48 Sq. Ft. | EC-180008","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair FNS® Plus 48 Sq. Ft. D.E. Filter (EC-180008) is a high-performance vertical-grid filtration system designed to deliver exceptionally clear water for residential swimming pools and pool-and-spa combinations. Its 48 square feet of effective filtration area uses diatomaceous earth-coated grids to capture extremely fine dirt, algae and suspended particles.\u003c\/p\u003e\n\u003cp\u003eThe FNS Plus filter features curved vertical grids that maximize filtration surface area while helping minimize internal flow restriction. Its fiberglass-reinforced polypropylene tank provides dependable strength, chemical resistance and corrosion protection for long-term outdoor operation.\u003c\/p\u003e\n\u003cp\u003ePentair identifies the EC-180008 as the e-commerce version of the FNSP48 filter. The complete internal grid assembly is included, but a compatible backwash valve and D.E. filter media must be purchased separately. Pentair’s current product listing rates the FNSP48 at 96 GPM.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eResidential in-ground swimming pools\u003c\/p\u003e\n\u003cp\u003eLarge residential pools\u003c\/p\u003e\n\u003cp\u003ePool-and-spa combinations\u003c\/p\u003e\n\u003cp\u003eNew pool construction\u003c\/p\u003e\n\u003cp\u003eEquipment-pad renovations\u003c\/p\u003e\n\u003cp\u003eApplications requiring very fine filtration\u003c\/p\u003e\n\u003cp\u003ePools prone to fine dust, pollen or algae\u003c\/p\u003e\n\u003cp\u003eSystems operating at flow rates up to approximately 96 GPM\u003c\/p\u003e\n\u003cp\u003ePool owners seeking maximum water clarity\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e48 sq. ft. effective filtration area\u003c\/p\u003e\n\u003cp\u003eVertical-grid D.E. filtration design\u003c\/p\u003e\n\u003cp\u003eRated flow of approximately 96 GPM\u003c\/p\u003e\n\u003cp\u003eCaptures particles as small as approximately 5 microns\u003c\/p\u003e\n\u003cp\u003eComplete internal grid assembly included\u003c\/p\u003e\n\u003cp\u003eCurved grids maximize available filtration area\u003c\/p\u003e\n\u003cp\u003eTop-to-bottom backwashing\u003c\/p\u003e\n\u003cp\u003eFiberglass-reinforced polypropylene tank\u003c\/p\u003e\n\u003cp\u003eChemical- and corrosion-resistant construction\u003c\/p\u003e\n\u003cp\u003eHigh Flow™ manual air-relief valve\u003c\/p\u003e\n\u003cp\u003eContinuous internal air-relief system\u003c\/p\u003e\n\u003cp\u003eEasily removable grid pack\u003c\/p\u003e\n\u003cp\u003eConveniently positioned drain for cleanout\u003c\/p\u003e\n\u003cp\u003e2-inch plumbing connections\u003c\/p\u003e\n\u003cp\u003eMaximum continuous operating pressure of 50 PSI\u003c\/p\u003e\n\u003cp\u003eMaximum internal water temperature of 104°F\u003c\/p\u003e\n\u003cp\u003eE-commerce model\u003c\/p\u003e\n\u003cp\u003ePentair describes the FNS Plus as a vertical-grid D.E. filter with curved grids, an easily removable grid pack, a High Flow manual air-relief valve and a chemical-resistant tank.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eD.E. filtration captures particles smaller than typical sand or cartridge filters\u003c\/p\u003e\n\u003cp\u003eHelps produce exceptionally clear, polished pool water\u003c\/p\u003e\n\u003cp\u003eLarge 48 sq. ft. grid area provides high dirt-holding capacity\u003c\/p\u003e\n\u003cp\u003eCurved grids maximize usable filtration surface\u003c\/p\u003e\n\u003cp\u003eInternal design helps reduce flow restriction\u003c\/p\u003e\n\u003cp\u003eRemovable grid pack simplifies deep cleaning\u003c\/p\u003e\n\u003cp\u003eDurable tank resists corrosion and pool chemicals\u003c\/p\u003e\n\u003cp\u003eTop-to-bottom backwashing helps remove accumulated debris\u003c\/p\u003e\n\u003cp\u003eHigh Flow air relief supports efficient filtration\u003c\/p\u003e\n\u003cp\u003eCompatible with standard slide or multiport backwash valves\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003eFNS® Plus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eFNSP48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003eEC-180008\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Part Number\u003c\/td\u003e\n\u003ctd\u003e180008\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eEC-180008\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC \/ Barcode\u003c\/td\u003e\n\u003ctd\u003e788379671617\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eVertical-Grid D.E. Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEffective Filtration Area\u003c\/td\u003e\n\u003ctd\u003e48 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Flow\u003c\/td\u003e\n\u003ctd\u003eApproximately 96 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEight-Hour Turnover Capacity\u003c\/td\u003e\n\u003ctd\u003eApproximately 46,080 Gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTen-Hour Turnover Capacity\u003c\/td\u003e\n\u003ctd\u003eApproximately 57,600 Gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTwelve-Hour Turnover Capacity\u003c\/td\u003e\n\u003ctd\u003eApproximately 69,120 Gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Diameter\u003c\/td\u003e\n\u003ctd\u003eApproximately 21.5 Inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired Vertical Clearance\u003c\/td\u003e\n\u003ctd\u003eApproximately 74 Inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired D.E. Charge\u003c\/td\u003e\n\u003ctd\u003eApproximately 4.8 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlumbing Connections\u003c\/td\u003e\n\u003ctd\u003e2 Inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Continuous Operating Pressure\u003c\/td\u003e\n\u003ctd\u003e50 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Internal Water Temperature\u003c\/td\u003e\n\u003ctd\u003e104°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank Material\u003c\/td\u003e\n\u003ctd\u003eFiberglass-Reinforced Polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid Configuration\u003c\/td\u003e\n\u003ctd\u003eSeven Full Grids and One Partial Grid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid Assembly Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackwash Valve Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD.E. Media Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eResidential Swimming Pools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE-Commerce Model\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e76 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Height\u003c\/td\u003e\n\u003ctd\u003e49 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (Shipping)\u003c\/td\u003e\n\u003ctd\u003e22.5 x 22.5 x 44.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003ePentair’s published FNS Plus brochure lists the FNSP48 with a 48 sq. ft. filtration area, 21.5-inch diameter, 74-inch vertical clearance and turnover capacities of 46,080, 57,600 and 69,120 gallons over eight, ten and twelve hours.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat’s Included\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePentair FNS Plus FNSP48 filter tank\u003c\/li\u003e\n\u003cli\u003eComplete 48 sq. ft. internal grid assembly\u003c\/li\u003e\n\u003cli\u003eSeven full-size filter grids\u003c\/li\u003e\n\u003cli\u003eOne partial filter grid\u003c\/li\u003e\n\u003cli\u003eTop manifold\u003c\/li\u003e\n\u003cli\u003eInternal air-bleed assembly\u003c\/li\u003e\n\u003cli\u003eTank clamp assembly\u003c\/li\u003e\n\u003cli\u003eHigh Flow™ manual air-relief valve\u003c\/li\u003e\n\u003cli\u003ePressure gauge\u003c\/li\u003e\n\u003cli\u003eDrain plug\u003c\/li\u003e\n\u003cli\u003eInstallation and operating documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA backwash valve, D.E. powder, plumbing unions, pipes, fittings and installation materials are not included unless specifically stated by the seller.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eGrid Assembly\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe FNSP48 uses a complete removable vertical-grid assembly consisting of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSeven full-size grids\u003c\/li\u003e\n\u003cli\u003eOne partial grid\u003c\/li\u003e\n\u003cli\u003eTop manifold\u003c\/li\u003e\n\u003cli\u003eInternal air-bleed assembly\u003c\/li\u003e\n\u003cli\u003eGrid locator\u003c\/li\u003e\n\u003cli\u003eTie rod and retaining hardware\u003c\/li\u003e\n\u003cli\u003eOutlet standpipe\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePentair identifies 59023400 as the complete replacement grid assembly for the 48 sq. ft. FNS Plus filter. Individual replacement grids include seven 59002400 full grids and one 59002300 partial grid.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWarranty \u0026amp; Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eD.E. Media Requirement\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe FNSP48 requires approximately 4.8 pounds of diatomaceous earth when coating clean filter grids. D.E. must be introduced through the pool skimmer after the system has started and all trapped air has been safely released.\u003c\/p\u003e\n\u003cp\u003ePentair specifies a full D.E. charge of 4.8 lbs. for the FNSP48.\u003c\/p\u003e\n\u003cp\u003eOnly swimming-pool-grade D.E. should be used. Follow all handling instructions and wear appropriate respiratory and eye protection when working with dry D.E. powder.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eValve Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe EC-180008 requires a compatible valve for normal filtration and backwashing. Depending on the installation, the filter may be used with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePentair slide valve\u003c\/li\u003e\n\u003cli\u003ePentair multiport valve\u003c\/li\u003e\n\u003cli\u003eCompatible 2-inch D.E. backwash valve\u003c\/li\u003e\n\u003cli\u003eSeparation tank system where required by local code\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe valve must be specifically designed for D.E. filtration and must match the filter’s port spacing and plumbing configuration.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFilter Maintenance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe filter should be backwashed when the pressure increases above the recorded clean-filter starting pressure or when circulation decreases. After backwashing, the grids must be recoated with the correct amount of fresh D.E.\u003c\/p\u003e\n\u003cp\u003ePeriodic manual cleaning is also required. The grid assembly should be removed and rinsed when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePressure remains high after backwashing\u003c\/li\u003e\n\u003cli\u003eWater flow does not return to normal\u003c\/li\u003e\n\u003cli\u003eThe filter is being winterized\u003c\/li\u003e\n\u003cli\u003eGrids show heavy scale or oil accumulation\u003c\/li\u003e\n\u003cli\u003eThe system has experienced an algae outbreak\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInspect the grids for tears, separated seams, cracked frames or damaged manifold components during each manual cleaning.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation Requirements\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eInstall the filter on a solid, level equipment pad with adequate space for plumbing, valve operation and future servicing.\u003c\/p\u003e\n\u003cp\u003eThe FNSP48 requires approximately 74 inches of vertical clearance so the upper tank section and grid assembly can be safely removed.\u003c\/p\u003e\n\u003cp\u003eThe plumbing system must be mechanically supported so pipe weight does not place strain on the filter or valve. A suitable waste line or D.E. separation tank must be installed in accordance with applicable local codes.\u003c\/p\u003e\n\u003cp\u003eThe filter must be installed and serviced by a qualified pool professional. Trapped air inside a pressurized filter can cause the lid to separate with extreme force. Always shut off power, prevent automatic pump restart, open the air-relief valve and confirm the pressure gauge reads zero before servicing.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eConfirm Before Ordering\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003ePlease verify:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe required model is FNS Plus FNSP48\u003c\/li\u003e\n\u003cli\u003eThe correct SKU is EC-180008\u003c\/li\u003e\n\u003cli\u003eA 48 sq. ft. D.E. filter is appropriate for the pool\u003c\/li\u003e\n\u003cli\u003eSystem flow does not exceed the filter’s published rating\u003c\/li\u003e\n\u003cli\u003eApproximately 74 inches of vertical clearance is available\u003c\/li\u003e\n\u003cli\u003eThe equipment pad can accommodate a filter approximately 21.5 inches in diameter\u003c\/li\u003e\n\u003cli\u003eExisting plumbing is compatible with 2-inch connections\u003c\/li\u003e\n\u003cli\u003eA compatible backwash valve is installed or will be purchased separately\u003c\/li\u003e\n\u003cli\u003eApproximately 4.8 lbs. of pool-grade D.E. is available for initial coating\u003c\/li\u003e\n\u003cli\u003eLocal regulations allow D.E. backwash discharge or require a separation tank\u003c\/li\u003e\n\u003cli\u003eThe complete internal grid assembly is included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWarranty Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe EC-180008 is an e-commerce-designated Pentair product and is covered by Pentair’s applicable limited warranty when purchased, installed and operated according to Pentair’s current warranty requirements.\u003c\/p\u003e\n\u003cp\u003eWarranty eligibility may depend on the seller, installation method and installer qualifications. Damage caused by improper installation, operation without D.E., excessive pressure, freeze damage, chemical misuse or failure to follow required service procedures may not be covered.\u003c\/p\u003e\n\u003cp\u003eProfessional installation by a qualified pool professional is strongly recommended.\u003c\/p\u003e\n\u003csection id=\"psd-manuals-sell-sheets\"\u003e\u003ch2\u003eManuals \u0026amp; Sell Sheets\u003c\/h2\u003e\n\u003cp\u003eManufacturer reference documents for this equipment family. Confirm your exact model and production revision before use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-install-guide-2025.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (2025 edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-vertical-grid-de-filter.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (previous edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48753823908150,"sku":"EC-180008","price":1379.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/pentair-48-sq-ft-fns-plus-de-de-filter-ec-180008-pool-supply-depot-2183994_808bb97a-3ce3-4f3b-830d-91770e782650.webp?v=1792464449"},{"product_id":"pentair-270100-valve-adaptor-kit-2-black-fns-plus-filters","title":"Pentair 270100 Valve Adaptor Kit 2\" Black FNS Plus Filters","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003ePentair 270100 Valve Adaptor Kit. Designed specifically for FNS Plus Filters, this 2\" black adaptor kit ensures a secure and seamless connection, enhancing the overall performance and efficiency of your pool's filtration process. Crafted from durable, high-quality materials, this adaptor kit is built to withstand the rigors of outdoor conditions, providing long-lasting reliability for your pool maintenance needs.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePerfect Fit:\u003c\/strong\u003e Designed to be fully compatible with Pentair FNS Plus Filters, ensuring a snug and secure connection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Made from premium-grade materials to resist wear and tear, even in harsh outdoor environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Simple, straightforward installation process that saves time and effort.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEnhanced Performance:\u003c\/strong\u003e Optimizes the filtration process, ensuring cleaner, clearer pool water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReliable Sealing:\u003c\/strong\u003e Prevents leaks and enhances the overall efficiency of your pool system.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e270100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e788379674687\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eValve Adapter Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e2 in. x 2.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.1 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Models\u003c\/td\u003e\n\u003ctd\u003ePentair Quad D.E., FNS Plus and Clean \u0026amp; Clear Plus filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":49323994284342,"sku":"270100","price":65.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/pentair-270100-valve-adaptor-kit-2-in-black-fns-plus-filters.png?v=1792648219"},{"product_id":"pentair-fns-plus-tank-bottom-assembly-60-sf-170018","title":"Pentair FNS Plus Tank Bottom Assembly 60 sf | 170018","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair FNS Plus Tank Bottom Assembly (Model 170018) is a genuine OEM replacement component for the FNS Plus 60 sq. ft. D.E. filter. This bottom tank shell forms the foundation of the filter body, supporting the internal grid assembly and ensuring proper sealing, structure, and long-term durability.\u003c\/p\u003e\n\u003cp\u003eMade from heavy-duty, corrosion-resistant materials, this tank bottom withstands harsh pool environments, high pressure, and continuous filtration cycles. It is the perfect replacement when your original tank bottom is cracked, leaking, damaged, or worn from years of use.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eRepairs on Pentair FNS Plus 60 sq. ft. (Model 180009) filters\u003c\/p\u003e\n\u003cp\u003eReplacing cracked, leaking, or UV-damaged tank bottoms\u003c\/p\u003e\n\u003cp\u003eRestoring structural integrity to older D.E. filter units\u003c\/p\u003e\n\u003cp\u003ePool professionals servicing residential or commercial filtration systems\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eOEM Pentair Replacement:\u003c\/strong\u003e Guaranteed fit and compatibility with the FNS Plus 60 sq. ft. filter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHeavy-Duty Tank Construction:\u003c\/strong\u003e Built from reinforced polymer designed to resist pressure, chemicals, and UV exposure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrecise Fit:\u003c\/strong\u003e Ensures proper sealing with the tank top assembly and correct alignment of internal components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDurable \u0026amp; Long-Lasting:\u003c\/strong\u003e Engineered to match factory performance and withstand demanding filtration cycles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Designed for straightforward assembly with existing FNS Plus hardware and O-rings.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRestores Filter Performance:\u003c\/strong\u003e Eliminates leaks and structural issues caused by damaged tank bottoms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExtends Filter Lifespan:\u003c\/strong\u003e Replacing only the tank component avoids purchasing a full new filter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSafe \u0026amp; Reliable:\u003c\/strong\u003e Maintains proper pressure handling and system integrity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOEM Quality Assurance:\u003c\/strong\u003e Ensures compatibility, longevity, and dependable operation.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e170018\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e788379670788\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter\u003c\/td\u003e\n\u003ctd\u003ePentair FNS Plus 60 sq. ft. (Model 180009)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Area\u003c\/td\u003e\n\u003ctd\u003e60 sq. ft. (FNS Plus FNSP60)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent\u003c\/td\u003e\n\u003ctd\u003eTank Bottom Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eReinforced polymer, pressure-rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003eBottom tank housing only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eIn-ground residential \u0026amp; commercial D.E. filtration systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (Shipping)\u003c\/td\u003e\n\u003ctd\u003e31.5 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (Shipping)\u003c\/td\u003e\n\u003ctd\u003e22 x 22.5 x 45 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003e\u003cstrong\u003eCustomer-Facing Q\u0026amp;A\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which FNS Plus model does this tank bottom fit?\u003c\/strong\u003e\u003cbr\u003eA: This bottom assembly fits the FNS Plus 60 sq. ft. D.E. filter (Model 180009).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does it include the tank top or clamp?\u003c\/strong\u003e\u003cbr\u003eA: No. This listing is for the tank bottom assembly only.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does it come with an O-ring?\u003c\/strong\u003e\u003cbr\u003eA: The O-ring is typically sold separately unless noted by the supplier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this be used on older FNS filters?\u003c\/strong\u003e\u003cbr\u003eA: It is designed specifically for the FNS Plus series and may not fit older FNS non-Plus models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is installation complicated?\u003c\/strong\u003e\u003cbr\u003eA: Most technicians can install it easily, but professional installation is recommended for pressure-rated components.\u003c\/p\u003e\n\u003csection id=\"psd-manuals-sell-sheets\"\u003e\u003ch2\u003eManuals \u0026amp; Sell Sheets\u003c\/h2\u003e\n\u003cp\u003eManufacturer reference documents for this equipment family. Confirm your exact model and production revision before use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-install-guide-2025.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (2025 edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-vertical-grid-de-filter.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (previous edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":51266623013174,"sku":"170018","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/Pool_Supply_Depot_-_Pentair_170018_Tank_Bottom_Assembly_for_FNS_Plus_60_sq_ft_D_E__Pool_Filter_1078x1078_png.webp?v=1792463590"},{"product_id":"swimables-drain-plug-cap-with-o-ring-for-fns-plus-and-quad-de-filters-sw-26-030","title":"Swimables Drain Plug Cap with O-ring for FNS Plus and Quad DE Filters | SW-26-030","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Swimables Drain Plug Cap with O-ring (model number SW-26-030) is a replacement part designed for specific Pentair pool filter models.\u003c\/p\u003e\n\u003cp\u003eIn summary, the Swimables SW-26-030 drain plug cap with O-ring is a reliable and durable replacement part that ensures a tight seal for the drain port of compatible Pentair FNS Plus and Quad DE pool filters, facilitating efficient operation and maintenance.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Specifically designed to fit Pentair FNS Plus and Quad DE filters. It may also be compatible with Pentair Clean and Clear Plus filters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSecure Seal:\u003c\/strong\u003e Includes an O-ring to ensure a tight and leak-proof seal when the drain plug is closed. This prevents water from escaping during filtration and drainage processes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Made from high-quality materials to withstand the chemicals and rigors of pool maintenance, ensuring long-lasting performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEasy Maintenance:\u003c\/strong\u003e Designed for simple and quick installation and removal, making routine filter maintenance more efficient.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirect Replacement:\u003c\/strong\u003e Functions as a direct replacement for the original drain plug cap on the specified Pentair filter models.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003ePurpose\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe primary purpose of this drain plug cap is to securely close the drain port at the bottom of your pool filter tank. This is essential for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaintaining water within the filter during normal operation.\u003c\/li\u003e\n\u003cli\u003eAllowing for controlled drainage of water from the filter tank when performing maintenance tasks such as cleaning or winterizing the filter.\u003c\/li\u003e\n\u003cli\u003ePreventing leaks from the drain port, which could lead to water loss and potential damage to surrounding equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSwimables\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eSW-26-030\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e810108820642\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003eDrain plug cap with O-ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filters\u003c\/td\u003e\n\u003ctd\u003ePentair FNS Plus and Quad DE filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.12 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (Shipping)\u003c\/td\u003e\n\u003ctd\u003e2 x 2 x 2.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Swimables","offers":[{"title":"Default Title","offer_id":51814103515446,"sku":"","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/SwimablesDrainCapwithO-RingforPentairFilters190030ZSW-26-0301_jpg.webp?v=1744826271"},{"product_id":"aladdin-o-ring-for-clean-and-clear-plus-and-fns-plus-tank-0-497","title":"O-Ring for Clean \u0026 Clear Plus and FNS Plus Tank | 0-497","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe O-497 Tank O-Ring is a replacement filter tank seal designed for compatible Pentair Clean \u0026amp; Clear Plus and FNS Plus filter systems. This large tank O-ring helps create a secure seal between the upper and lower filter tank halves, helping prevent leaks during normal pool filtration operation.\u003c\/p\u003e\n\u003cp\u003eThis O-ring is commonly cross-referenced with Pentair part number 39010200 and is used on several compatible Pentair cartridge and D.E. filter models. It is a practical replacement part when the original tank O-ring becomes stretched, flattened, cracked, dry, leaking, or damaged during filter service.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThis tank O-ring is ideal for pool service technicians, repair professionals, and pool owners maintaining compatible Pentair Clean \u0026amp; Clear Plus, FNS Plus, Quad DE, RPM, and related filter systems. It is especially useful during filter cleaning, filter tank reassembly, clamp service, or leak repair.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eReplacement Tank Seal:\u003c\/strong\u003e Designed to seal the filter tank body on compatible Pentair filters. A properly fitted tank O-ring helps prevent water leaks between the filter tank halves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible with Clean \u0026amp; Clear Plus and FNS Plus:\u003c\/strong\u003e Commonly listed for Pentair Clean \u0026amp; Clear Plus cartridge filters and FNS Plus D.E. filters. Additional compatibility may include Quad DE, RPM, Titan, SM, SMBW, and 5000 Series filter applications depending on the model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCross-Referenced with Pentair 39010200:\u003c\/strong\u003e O-497 is commonly used as an aftermarket cross-reference for Pentair 39010200. This helps customers match the replacement O-ring to the original Pentair tank seal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLarge 1\/2\" Tank O-Ring:\u003c\/strong\u003e Supplier listings commonly describe this O-ring as approximately 20-7\/8\" inside diameter with a 1\/2\" cross-section. Always compare dimensions and filter model before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHelps Prevent Filter Leaks:\u003c\/strong\u003e A worn or flattened tank O-ring can allow water to escape from the filter clamp area. Replacing the O-ring can help restore a reliable seal after filter cleaning or service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eService-Friendly Replacement Part:\u003c\/strong\u003e This is a common maintenance item for filters that are opened periodically for cartridge cleaning or D.E. grid service. Inspecting and replacing the O-ring when needed can help avoid leaks after reassembly.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe O-497 Tank O-Ring helps maintain a secure, leak-resistant seal on compatible Pentair filter tanks. Replacing a worn or damaged O-ring can help stop clamp-area leaks, improve filter reliability, and support safer filter operation after maintenance.\u003c\/p\u003e\n\u003cp\u003eThis is a simple but important filter service part that should be inspected whenever the filter tank is opened. For best results, clean the sealing surface, inspect the clamp assembly, and use a pool-safe O-ring lubricant during installation.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFilter Tank O-Ring \/ Tank Clamp O-Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSuper-Pro \/ Aftermarket Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel \/ Part Number\u003c\/td\u003e\n\u003ctd\u003eO-497 \/ 0-497\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eO-497\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon Alternate Part Number\u003c\/td\u003e\n\u003ctd\u003eO-497-9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePentair Cross-Reference\u003c\/td\u003e\n\u003ctd\u003e39010200 \/ 39010200Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDistributor Product Number\u003c\/td\u003e\n\u003ctd\u003eSPG-601-1246\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC \/ Barcode\u003c\/td\u003e\n\u003ctd\u003e601402290190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter Type\u003c\/td\u003e\n\u003ctd\u003eCartridge and D.E. filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon Compatible Series\u003c\/td\u003e\n\u003ctd\u003ePentair Clean \u0026amp; Clear Plus, FNS Plus, Quad DE, RPM, Titan, SM \/ SMBW, 5000 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon Compatible Models\u003c\/td\u003e\n\u003ctd\u003eClean \u0026amp; Clear Plus CCP filters, FNS Plus filters, Quad DE filters, RPM tank clamp applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Inside Diameter\u003c\/td\u003e\n\u003ctd\u003e20-7\/8\" commonly listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Cross-Section\u003c\/td\u003e\n\u003ctd\u003e1\/2\" commonly listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eFilter tank body seal \/ clamp area seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity Included\u003c\/td\u003e\n\u003ctd\u003e1 O-Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Condition\u003c\/td\u003e\n\u003ctd\u003eNew Replacement Part\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfessional Installation\u003c\/td\u003e\n\u003ctd\u003eNot typically required, but recommended for filter repairs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003e\u003cstrong\u003eCustomer-Facing Q\u0026amp;A\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the O-497 O-ring used for?\u003c\/strong\u003e\u003cbr\u003eA: It is a replacement tank O-ring used to seal compatible Pentair filter tanks, including Clean \u0026amp; Clear Plus and FNS Plus models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this the same as Pentair 39010200?\u003c\/strong\u003e\u003cbr\u003eA: O-497 is commonly cross-referenced with Pentair 39010200 and 39010200Z tank O-rings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which filters does this fit?\u003c\/strong\u003e\u003cbr\u003eA: It is commonly listed for Pentair Clean \u0026amp; Clear Plus, FNS Plus, Quad DE, RPM, Titan, SM \/ SMBW, and 5000 Series filter applications. Always confirm the exact filter model before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How many O-rings are included?\u003c\/strong\u003e\u003cbr\u003eA: This listing includes one tank O-ring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What are the approximate dimensions?\u003c\/strong\u003e\u003cbr\u003eA: Supplier listings commonly describe this O-ring as approximately 20-7\/8\" inside diameter with a 1\/2\" cross-section.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: When should this O-ring be replaced?\u003c\/strong\u003e\u003cbr\u003eA: Replace it if the O-ring is stretched, cracked, flattened, dry, swollen, cut, or if the filter leaks around the tank clamp after reassembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should I lubricate this O-ring before installation?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Use a pool-safe silicone-based O-ring lubricant and clean the sealing surfaces before reinstalling the filter tank top.\u003c\/p\u003e\n\u003csection id=\"psd-manuals-sell-sheets\"\u003e\u003ch2\u003eManuals \u0026amp; Sell Sheets\u003c\/h2\u003e\n\u003cp\u003eManufacturer reference documents for this equipment family. Confirm your exact model and production revision before use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/filter-web-pages\/support-pages\/pentair-clean-and-clear-cartridge-filter-brochure-2025.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSell sheet: Clean and Clear Cartridge Filter — English\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/pool-manuals\/filters\/Clean_and_Clear_Owners_Manual_English.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: Clean and Clear Filter Manual\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"Aladdin","offers":[{"title":"Default Title","offer_id":52479850021174,"sku":null,"price":28.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/aladdin-o-ring-for-clean-and-clear-plus-and-fns-plus-tank-0-497.avif?v=1792648118"},{"product_id":"pentair-fns-plus-tank-bottom-assembly-36-sf-170016","title":"Pentair FNS Plus Tank Bottom Assembly 36 sf | 170016","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair 170016 FNS Plus Tank Bottom Assembly is a genuine OEM replacement lower tank body for the Pentair FNS Plus 36 sq ft D.E. filter. This assembly forms the bottom half of the filter tank and supports the internal standpipe, grid assembly, bulkhead fittings, and sealing surface needed for proper filter operation.\u003c\/p\u003e\n\u003cp\u003eThis replacement part is commonly used when the original tank bottom is cracked, leaking, damaged, or no longer sealing properly at the clamp band connection.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eReplacing the lower tank body on a Pentair FNS Plus 36 sq ft D.E. filter model FNSP36.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eGenuine Pentair OEM replacement part\u003c\/p\u003e\n\u003cp\u003eDesigned for Pentair FNS Plus 36 sq ft D.E. filters\u003c\/p\u003e\n\u003cp\u003eReplaces the lower tank body assembly\u003c\/p\u003e\n\u003cp\u003eHelps restore proper filter housing integrity\u003c\/p\u003e\n\u003cp\u003eSupports the internal standpipe and D.E. grid assembly\u003c\/p\u003e\n\u003cp\u003eProvides the lower sealing surface for the tank O-ring and clamp band\u003c\/p\u003e\n\u003cp\u003eDurable molded construction for pool filtration use\u003c\/p\u003e\n\u003cp\u003eUsed for cracked, leaking, or damaged tank bottom repairs\u003c\/p\u003e\n\u003cp\u003eHelps avoid replacing the complete filter when only the lower tank is damaged\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair 170016 tank bottom assembly helps restore the structural base of the FNS Plus filter. A damaged or cracked tank bottom can cause leaks, pressure issues, or unsafe filter operation. Replacing the lower tank assembly with the correct OEM part helps maintain proper filtration performance and keeps the filter housing matched to the original factory design.\u003c\/p\u003e\n\u003cp\u003eThis is a practical repair option when the upper tank, clamp, grids, and other components are still serviceable.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eD.E. Filter Tank Bottom Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003e170016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e170016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Series\u003c\/td\u003e\n\u003ctd\u003eFNS Plus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Size\u003c\/td\u003e\n\u003ctd\u003e36 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter Model\u003c\/td\u003e\n\u003ctd\u003eFNSP36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eD.E. Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank Section\u003c\/td\u003e\n\u003ctd\u003eBottom \/ Lower Tank Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eTan \/ Almond\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Dimensions\u003c\/td\u003e\n\u003ctd\u003e22\" L x 22\" W x 33.5\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003eTank bottom assembly with standpipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePool and spa D.E. filter repair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM \/ Aftermarket\u003c\/td\u003e\n\u003ctd\u003eGenuine OEM Pentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfessional Installation\u003c\/td\u003e\n\u003ctd\u003eRecommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e788379670764\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e30 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003e\u003cstrong\u003eWarranty \u0026amp; Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eDesigned for the Pentair FNS Plus 36 sq ft D.E. filter, commonly identified as model FNSP36.\u003c\/p\u003e\n\u003cp\u003eAlways confirm your filter model number, tank size, clamp style, and parts diagram before ordering. Some older FNS Plus filter configurations may require additional parts depending on the existing clamp band and internal components.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Installation Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eBefore replacing the tank bottom assembly, fully shut down the pool system, release all filter pressure, and confirm the filter is completely depressurized. Inspect the tank O-ring, clamp band, bulkhead fittings, standpipe, grids, manifold, air relief assembly, and drain components during replacement.\u003c\/p\u003e\n\u003cp\u003eFor older FNS Plus filters, confirm whether your existing clamp band is compatible with the replacement tank bottom before ordering.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCustomer-Facing Q\u0026amp;A\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is Pentair part 170016 used for?\u003c\/strong\u003e\u003cbr\u003eA: It replaces the lower tank body assembly on the Pentair FNS Plus 36 sq ft D.E. filter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which filter does this fit?\u003c\/strong\u003e\u003cbr\u003eA: It is designed for the Pentair FNS Plus 36 sq ft D.E. filter, model FNSP36.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this include the standpipe?\u003c\/strong\u003e\u003cbr\u003eA: Yes. This tank bottom assembly is commonly listed with the standpipe included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this the complete filter?\u003c\/strong\u003e\u003cbr\u003eA: No. This is the bottom tank assembly only. It does not include the upper tank, clamp band, complete grid set, manifold, or full filter assembly unless otherwise stated.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this fix a cracked lower filter tank?\u003c\/strong\u003e\u003cbr\u003eA: Yes, if the damage is limited to the lower tank section and the rest of the filter is still in good condition.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should the tank O-ring be replaced at the same time?\u003c\/strong\u003e\u003cbr\u003eA: It is recommended to inspect and replace worn O-rings, seals, and related hardware during tank service to help prevent leaks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is professional installation recommended?\u003c\/strong\u003e\u003cbr\u003eA: Yes. D.E. filters operate under pressure, so professional installation is recommended for safety and proper fitment.\u003c\/p\u003e\n\u003c!--split--\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52762832011574,"sku":"PEN170016 -H","price":398.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/pentair-fns-plus-tank-bottom-assembly-36-sf-170016.jpg?v=1792647894"},{"product_id":"pentair-fns-plus-tank-bottom-assembly-48-sf-170017","title":"Pentair FNS Plus Tank Bottom Assembly 48 sf | 170017","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eRestore the strength, support, and sealing performance of your filter system with the Pentair 170017 FNS Plus Tank Bottom Assembly. Designed for the Pentair FNS Plus 48 sq. ft. D.E. filter, this genuine replacement tank bottom helps maintain proper filter structure, water flow, and pressure containment.\u003c\/p\u003e\n\u003cp\u003eThe tank bottom is a critical part of the filter body. If the original tank bottom is cracked, leaking, warped, or damaged, replacing it with the correct Pentair assembly can help restore safe and reliable filter operation without replacing the entire filter system.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eGenuine Pentair Replacement for FNS Plus 48 Sq. Ft. Filters\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Pentair 170017 is an OEM replacement tank bottom assembly made for FNS Plus FNSP48 D.E. filters. It is designed to match the original filter body for proper fit, dependable sealing, and long-lasting performance.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDesigned to Restore Filter Housing Integrity\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA damaged filter tank bottom can cause leaks, pressure loss, and reduced filtration performance. The Pentair 170017 replacement assembly provides the lower housing structure needed to support internal filter components and maintain proper system operation.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eGenuine Pentair replacement tank bottom assembly\u003c\/p\u003e\n\u003cp\u003eFits Pentair FNS Plus 48 sq. ft. D.E. filters\u003c\/p\u003e\n\u003cp\u003eDesigned for FNSP48 filter models\u003c\/p\u003e\n\u003cp\u003eHelps restore filter housing integrity\u003c\/p\u003e\n\u003cp\u003eSupports proper pressure and water flow\u003c\/p\u003e\n\u003cp\u003eReplacement for cracked, leaking, or damaged tank bottoms\u003c\/p\u003e\n\u003cp\u003eDurable construction for pool and spa filter applications\u003c\/p\u003e\n\u003cp\u003eCommonly used in filter repair and restoration projects\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose the Pentair 170017?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eGenuine OEM Fit:\u003c\/strong\u003e Manufactured by Pentair for the FNS Plus 48 sq. ft. D.E. filter, helping ensure correct fit and compatibility.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRestores Filter Structure:\u003c\/strong\u003e Replaces a cracked, leaking, or damaged tank bottom to help restore the filter housing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHelps Prevent Leaks:\u003c\/strong\u003e A properly installed tank bottom assembly supports a secure, pressure-resistant filter seal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupports Proper Water Flow:\u003c\/strong\u003e Helps maintain correct internal alignment and flow through the filter system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes Standpipe:\u003c\/strong\u003e Designed as a tank bottom assembly and commonly listed with the standpipe included.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eExtends Filter System Life:\u003c\/strong\u003e Replacing the damaged tank bottom can help avoid the cost of replacing the full filter system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHelps Maintain Safe Filter Operation:\u003c\/strong\u003e A sound tank bottom helps support proper pressure containment and reduces the risk of leaks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImproves Reliability:\u003c\/strong\u003e Restoring the filter housing can help improve filtration consistency and system performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal for Professional Repairs:\u003c\/strong\u003e A dependable replacement part for pool service technicians and experienced pool owners repairing FNS Plus D.E. filters.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFilter Tank Bottom Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e170017\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e170017\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC \/ Barcode\u003c\/td\u003e\n\u003ctd\u003e788379670771\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter\u003c\/td\u003e\n\u003ctd\u003ePentair FNS Plus 48 sq. ft. D.E. Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Model\u003c\/td\u003e\n\u003ctd\u003eFNSP48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eD.E. Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Size\u003c\/td\u003e\n\u003ctd\u003e48 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePool and Spa Filter Repair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003eTank Bottom Assembly with Standpipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Dimensions\u003c\/td\u003e\n\u003ctd\u003e22 in. L x 33-1\/2 in. H x 22 in. W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalog \/ Alternate Part Number\u003c\/td\u003e\n\u003ctd\u003e4600-0017\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther Cross References\u003c\/td\u003e\n\u003ctd\u003ePEN170017, 14-110-1556\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Type\u003c\/td\u003e\n\u003ctd\u003eReplacement Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003ePentair Pool Products\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e50 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003e\u003cstrong\u003eWarranty \u0026amp; Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatible With\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePentair FNS Plus 48 sq. ft. D.E. Filter\u003c\/li\u003e\n\u003cli\u003ePentair FNSP48 Filter Model\u003c\/li\u003e\n\u003cli\u003ePentair FNS Plus Pool and Spa D.E. Filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Care Tips\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eBefore servicing the filter, turn off the pool pump, relieve all filter pressure, and follow the manufacturer’s safety instructions. The tank bottom assembly is part of the pressure vessel, so installation should be performed carefully to ensure proper alignment, sealing, and reassembly.\u003c\/p\u003e\n\u003cp\u003eInspect the tank clamp, O-ring, internal components, bulkhead fittings, and sealing surfaces during replacement. Replace any worn or damaged related parts before restarting the system.\u003c\/p\u003e\n\u003cp\u003eAfter installation, restart the system according to the filter manual and check carefully for leaks, pressure changes, and proper water flow.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCustomer-Facing Q\u0026amp;A\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit my Pentair FNS Plus 48 sq. ft. filter?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Pentair 170017 is designed for the Pentair FNS Plus 48 sq. ft. D.E. filter, model FNSP48.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the SKU for this tank bottom assembly?\u003c\/strong\u003e\u003cbr\u003eA: The SKU is 170017.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the barcode for this product?\u003c\/strong\u003e\u003cbr\u003eA: The UPC \/ Barcode is 788379670771.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this a genuine Pentair replacement part?\u003c\/strong\u003e\u003cbr\u003eA: Yes. This is a genuine Pentair replacement tank bottom assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this include the standpipe?\u003c\/strong\u003e\u003cbr\u003eA: Yes. This tank bottom assembly is commonly listed with the standpipe included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: When should I replace the tank bottom assembly?\u003c\/strong\u003e\u003cbr\u003eA: Replace it if the tank bottom is cracked, leaking, damaged, warped, or no longer sealing properly under pressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I install this myself?\u003c\/strong\u003e\u003cbr\u003eA: Because this part is part of the filter’s pressure vessel, installation should be done carefully according to the manufacturer’s instructions. When unsure, use a qualified pool service professional.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52762832044342,"sku":"PEN170017 -H","price":429.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/PEN170017_0_6204b85a-c757-4206-9804-61ce4f5fa87a.jpg?v=1755535752"},{"product_id":"pentair-fns-plus-tank-lid-assembly-36-sf-170020","title":"Pentair FNS Plus Tank Lid Assembly 36 sf | 170020","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair 170020 FNS Plus Tank Lid Assembly is a genuine OEM replacement upper tank section for the Pentair FNS Plus 36 sq ft D.E. filter. This lid assembly forms the top half of the filter tank and provides the upper sealing surface needed for proper clamp band and tank O-ring fitment.\u003c\/p\u003e\n\u003cp\u003eThis replacement part is commonly used when the original tank lid is cracked, leaking, damaged, or no longer sealing correctly. It is designed to restore the structural integrity of the filter housing without replacing the complete filter system.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eReplacing the upper tank lid assembly on a Pentair FNS Plus 36 sq ft D.E. filter model FNSP36.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eGenuine Pentair OEM replacement part\u003c\/p\u003e\n\u003cp\u003eDesigned for Pentair FNS Plus 36 sq ft D.E. filters\u003c\/p\u003e\n\u003cp\u003eReplaces the upper tank \/ lid assembly\u003c\/p\u003e\n\u003cp\u003eHelps restore proper filter tank sealing\u003c\/p\u003e\n\u003cp\u003eProvides the upper sealing surface for the tank O-ring and clamp band\u003c\/p\u003e\n\u003cp\u003eDurable molded tank construction\u003c\/p\u003e\n\u003cp\u003eUsed for cracked, leaking, or damaged filter lids\u003c\/p\u003e\n\u003cp\u003eCompatible with FNS Plus 36 sq ft D.E. filter systems\u003c\/p\u003e\n\u003cp\u003eHelps avoid full filter replacement when only the lid is damaged\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair 170020 tank lid assembly helps restore safe and proper operation of the FNS Plus filter housing. A damaged lid can cause leaks, pressure loss, clamp sealing issues, or unsafe filter operation. Replacing the upper tank section with the correct OEM Pentair part helps maintain factory fitment and reliable performance.\u003c\/p\u003e\n\u003cp\u003eThis is a practical repair option when the lower tank, clamp band, grid assembly, and other internal parts are still in usable condition.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eD.E. Filter Tank Lid Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003e170020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e170020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Series\u003c\/td\u003e\n\u003ctd\u003eFNS Plus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Size\u003c\/td\u003e\n\u003ctd\u003e36 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter Model\u003c\/td\u003e\n\u003ctd\u003eFNSP36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eD.E. Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank Section\u003c\/td\u003e\n\u003ctd\u003eLid \/ Upper Tank Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eTan \/ Almond\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePool and spa D.E. filter repair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003eTank lid assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM \/ Aftermarket\u003c\/td\u003e\n\u003ctd\u003eGenuine OEM Pentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfessional Installation\u003c\/td\u003e\n\u003ctd\u003eRecommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e788379670801\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e13.76 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (Shipping)\u003c\/td\u003e\n\u003ctd\u003e20.5 x 20.5 x 25.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003e\u003cstrong\u003eWarranty \u0026amp; Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eDesigned for the Pentair FNS Plus 36 sq ft D.E. filter, commonly identified as model FNSP36.\u003c\/p\u003e\n\u003cp\u003eAlways confirm your filter model number, tank size, clamp style, air relief assembly, and parts diagram before ordering. Older FNS Plus filters may require inspection of the clamp band, O-ring, and related hardware before replacing the tank lid.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eImportant Installation Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eBefore servicing or replacing the tank lid, fully turn off the pool system, open the air relief valve, and make sure all filter pressure has been released. D.E. filters operate under pressure and can be dangerous if opened while pressurized.\u003c\/p\u003e\n\u003cp\u003eDuring replacement, inspect the tank O-ring, clamp band, air relief assembly, pressure gauge, internal manifold, grids, and lower tank sealing surface. Replace worn or damaged seals and hardware as needed.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCustomer-Facing Q\u0026amp;A\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is Pentair part 170020 used for?\u003c\/strong\u003e\u003cbr\u003eA: It replaces the upper tank lid assembly on the Pentair FNS Plus 36 sq ft D.E. filter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which filter does this fit?\u003c\/strong\u003e\u003cbr\u003eA: This part is designed for the Pentair FNS Plus 36 sq ft D.E. filter, model FNSP36.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this the complete filter?\u003c\/strong\u003e\u003cbr\u003eA: No. This is the tank lid \/ upper tank assembly only. It does not include the full filter, lower tank, complete grid set, clamp band, or plumbing connections unless otherwise stated.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this fix a cracked filter lid?\u003c\/strong\u003e\u003cbr\u003eA: Yes, if the damage is limited to the upper tank lid and the rest of the filter is still in good condition.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should I replace the tank O-ring at the same time?\u003c\/strong\u003e\u003cbr\u003eA: It is recommended to inspect the tank O-ring and replace it if it is worn, flattened, stretched, cracked, or leaking.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this include the air relief valve or pressure gauge?\u003c\/strong\u003e\u003cbr\u003eA: This listing is for the tank lid assembly. Confirm current packaging before publishing if your inventory includes or excludes the air relief assembly or pressure gauge.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is professional installation recommended?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Because this is part of a pressurized D.E. filter system, professional installation is recommended.\u003c\/p\u003e\n\u003c!--split--\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52762832077110,"sku":"PEN170020 -H","price":239.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/pentair-fns-plus-tank-lid-assembly-36-sf-170020.jpg?v=1792647894"},{"product_id":"pentair-fns-plus-tank-lid-assembly-60-sf-170022","title":"Pentair FNS Plus Tank Lid Assembly 60 sf | 170022","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eRestore the safety, sealing performance, and structural integrity of your filter system with the Pentair 170022 FNS Plus Tank Lid Assembly. Designed for the Pentair FNS Plus 60 sq. ft. D.E. filter, this genuine Pentair replacement tank lid helps secure the upper portion of the filter tank and maintain proper pressure during operation.\u003c\/p\u003e\n\u003cp\u003eThe filter tank lid is a critical part of the pressure vessel. If the original lid is cracked, leaking, warped, or damaged, replacing it with the correct OEM Pentair assembly helps restore reliable filtration performance and safe system operation.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eGenuine Pentair Replacement for FNS Plus 60 Sq. Ft. Filters\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Pentair 170022 is an OEM replacement tank lid assembly made for Pentair FNS Plus FNSP60 D.E. filters. It is designed to match the original filter housing for proper fit, dependable sealing, and long-lasting durability.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDesigned to Maintain a Secure Filter Seal\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA damaged or worn tank lid can cause leaks, pressure loss, and unsafe filter operation. The Pentair 170022 replacement lid helps maintain a secure, pressure-tight seal when properly installed with the correct clamp and tank O-ring.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eGenuine Pentair replacement tank lid assembly\u003c\/p\u003e\n\u003cp\u003eFits Pentair FNS Plus 60 sq. ft. D.E. filters\u003c\/p\u003e\n\u003cp\u003eDesigned for FNSP60 filter models\u003c\/p\u003e\n\u003cp\u003eCompatible with filter model 180009\u003c\/p\u003e\n\u003cp\u003eHelps restore filter housing integrity\u003c\/p\u003e\n\u003cp\u003eSupports proper pressure containment and sealing\u003c\/p\u003e\n\u003cp\u003eReplacement for cracked, leaking, or damaged tank lids\u003c\/p\u003e\n\u003cp\u003eDurable tan \/ almond-color construction\u003c\/p\u003e\n\u003cp\u003eOEM part designed for correct fit and performance\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Choose the Pentair 170022?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eGenuine OEM Fit:\u003c\/strong\u003e Manufactured by Pentair for the FNS Plus 60 sq. ft. D.E. filter, helping ensure correct fit and compatibility.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRestores Filter Housing Integrity:\u003c\/strong\u003e Replaces a cracked, leaking, warped, or damaged filter tank lid to help restore proper filter operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHelps Prevent Leaks:\u003c\/strong\u003e A properly installed tank lid supports a secure, pressure-resistant seal at the filter body.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupports Reliable Filtration:\u003c\/strong\u003e Helps maintain proper internal pressure and water flow through the D.E. filter system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal for Filter Repairs:\u003c\/strong\u003e A dependable replacement part for pool service technicians and experienced pool owners repairing FNS Plus D.E. filters.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eRestores Safe Filter Operation:\u003c\/strong\u003e Replacing a damaged tank lid helps restore the filter’s ability to operate under normal system pressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHelps Reduce Leaks:\u003c\/strong\u003e A correct-fitting lid helps support a tight seal and reduce water leaks around the filter tank.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExtends Filter System Life:\u003c\/strong\u003e Replacing the damaged lid can help avoid the cost of replacing the entire filter system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaintains Filtration Performance:\u003c\/strong\u003e A properly sealed filter tank helps maintain the pressure and flow needed for effective D.E. filtration.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFilter Tank Lid Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e170022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e170022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC \/ Barcode\u003c\/td\u003e\n\u003ctd\u003e788379670825\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter\u003c\/td\u003e\n\u003ctd\u003ePentair FNS Plus 60 sq. ft. D.E. Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Model\u003c\/td\u003e\n\u003ctd\u003eFNSP60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter Model\u003c\/td\u003e\n\u003ctd\u003e180009\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eD.E. Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Size\u003c\/td\u003e\n\u003ctd\u003e60 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eTan \/ Almond\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePool and Spa Filter Repair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Dimensions\u003c\/td\u003e\n\u003ctd\u003e20-1\/2 in. L x 25-1\/4 in. H x 20-3\/4 in. W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalog \/ Alternate Part Number\u003c\/td\u003e\n\u003ctd\u003e4600-0022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther Cross References\u003c\/td\u003e\n\u003ctd\u003e622793, AMP-051-1079\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Type\u003c\/td\u003e\n\u003ctd\u003eReplacement Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003ePentair Pool Products\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e20.5 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003e\u003cstrong\u003eWarranty \u0026amp; Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatible With\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePentair FNS Plus 60 sq. ft. D.E. Filter\u003c\/li\u003e\n\u003cli\u003ePentair FNSP60 Filter Model\u003c\/li\u003e\n\u003cli\u003ePentair FNS Plus Filter Model 180009\u003c\/li\u003e\n\u003cli\u003ePentair FNS Plus Pool and Spa D.E. Filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Care Tips\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eBefore servicing the filter, turn off the pool pump, relieve all filter pressure, and follow the manufacturer’s safety instructions. Because the tank lid is part of the filter pressure vessel, proper installation is essential.\u003c\/p\u003e\n\u003cp\u003eInspect the tank O-ring, clamp assembly, air relief valve, pressure gauge, and sealing surfaces during replacement. Replace any worn or damaged related parts before restarting the system.\u003c\/p\u003e\n\u003cp\u003eAfter installation, restart the system according to the filter manual and carefully check for leaks, pressure changes, and proper water flow.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCustomer-Facing Q\u0026amp;A\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit my Pentair FNS Plus 60 sq. ft. filter?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The Pentair 170022 is designed for the Pentair FNS Plus 60 sq. ft. D.E. filter, model FNSP60.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the SKU for this tank lid assembly?\u003c\/strong\u003e\u003cbr\u003eA: The SKU is 170022.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the barcode for this product?\u003c\/strong\u003e\u003cbr\u003eA: The UPC \/ Barcode is 788379670825.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this a genuine Pentair replacement part?\u003c\/strong\u003e\u003cbr\u003eA: Yes. This is a genuine Pentair replacement tank lid assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What filter model does this fit?\u003c\/strong\u003e\u003cbr\u003eA: This lid fits the Pentair FNS Plus 60 sq. ft. D.E. filter and is commonly associated with filter model 180009.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: When should I replace the tank lid assembly?\u003c\/strong\u003e\u003cbr\u003eA: Replace the lid if it is cracked, leaking, warped, damaged, or no longer sealing properly under pressure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should I replace the tank O-ring at the same time?\u003c\/strong\u003e\u003cbr\u003eA: It is recommended to inspect the tank O-ring during installation and replace it if it is flattened, cracked, stretched, or worn.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I install this myself?\u003c\/strong\u003e\u003cbr\u003eA: Because this part is part of the filter’s pressure vessel, installation should be done carefully according to the manufacturer’s instructions. When unsure, use a qualified pool service professional.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52762832109878,"sku":"PEN170022 -H","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/PEN170022_0.jpg?v=1755535752"},{"product_id":"pentair-fns-plus-grid-assembly-36-sq-ft-59023500","title":"Pentair FNS Plus Grid Assembly 36 sq-ft | 59023500","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair 59023500 Grid Assembly is a genuine replacement complete D.E. grid assembly designed for the Pentair FNS Plus 36 sq. ft. D.E. filter. This pre-assembled internal grid cluster replaces the filter’s worn, torn, cracked, or damaged internal grid set to help restore proper filtration performance.\u003c\/p\u003e\n\u003cp\u003eThis assembly is designed as a drop-in replacement for compatible 36 sq. ft. vertical-grid D.E. filters and includes the main internal grid components needed to replace the complete element cluster. It is ideal when individual grids are damaged, the manifold is worn, or the full internal assembly needs to be replaced.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003ePentair FNS Plus 36 sq. ft. D.E. filter repairs\u003c\/p\u003e\n\u003cp\u003eReplacing worn or torn D.E. grids\u003c\/p\u003e\n\u003cp\u003eReplacing a damaged internal grid cluster\u003c\/p\u003e\n\u003cp\u003eRestoring filter efficiency and water clarity\u003c\/p\u003e\n\u003cp\u003ePool service technicians\u003c\/p\u003e\n\u003cp\u003eResidential pool filter maintenance\u003c\/p\u003e\n\u003cp\u003eD.E. filter rebuilds\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eGenuine Pentair replacement grid assembly\u003c\/p\u003e\n\u003cp\u003eDesigned for FNS Plus 36 sq. ft. D.E. filters\u003c\/p\u003e\n\u003cp\u003eComplete pre-assembled internal element cluster\u003c\/p\u003e\n\u003cp\u003eIncludes eight 18-inch grids\u003c\/p\u003e\n\u003cp\u003eIncludes top manifold, bottom manifold, and tie rods\u003c\/p\u003e\n\u003cp\u003eDrop-in design helps simplify filter rebuilds\u003c\/p\u003e\n\u003cp\u003eRestores proper D.E. filtration performance\u003c\/p\u003e\n\u003cp\u003eIdeal replacement when multiple grids or manifolds are damaged\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair 59023500 complete grid assembly helps restore filtration performance by replacing the internal D.E. grid cluster inside a compatible FNS Plus 36 filter. Over time, D.E. grids can tear, crack, warp, or become clogged with scale and oils that no longer clean out properly. Replacing the complete assembly can improve water clarity, filter efficiency, and system performance.\u003c\/p\u003e\n\u003cp\u003eBecause this is a complete pre-assembled grid assembly, it helps save time compared to rebuilding the filter with individual grids and manifold parts separately. This makes it a practical choice for service technicians and pool owners who want a cleaner, more efficient repair.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eComplete D.E. Grid Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eGrid Assembly for FNS Plus 36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e59023500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003e59023500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM \/ Aftermarket\u003c\/td\u003e\n\u003ctd\u003eGenuine Pentair Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eD.E. Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Size\u003c\/td\u003e\n\u003ctd\u003e36 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid Length\u003c\/td\u003e\n\u003ctd\u003e18 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid Quantity\u003c\/td\u003e\n\u003ctd\u003e8 Total Grids\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid Configuration\u003c\/td\u003e\n\u003ctd\u003e7 Full Grids and 1 Partial Grid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003eTop manifold, bottom manifold, grids, tie rods\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter Model\u003c\/td\u003e\n\u003ctd\u003ePentair FNS Plus 36 \/ FNSP36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlso Used With\u003c\/td\u003e\n\u003ctd\u003eSelect Pentair\/PacFab\/Purex\/American Products 36 sq. ft. FNS Plus D.E. filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Use\u003c\/td\u003e\n\u003ctd\u003eReplaces complete internal D.E. element grid cluster\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e788379681722\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e21 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (Shipping)\u003c\/td\u003e\n\u003ctd\u003e18.5 x 18 x 25 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003e\u003cstrong\u003eWarranty \u0026amp; Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eConfirm Before Ordering\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eConfirm your filter model and square footage before ordering. This assembly is for the FNS Plus 36 sq. ft. D.E. filter and uses 18-inch grids. It is not for FNS Plus 24, 48, or 60 sq. ft. models. Always relieve system pressure, shut off equipment, and follow the filter manufacturer’s service instructions before opening any pressurized filter tank.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCustomer-Facing Q\u0026amp;A\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does the Pentair 59023500 replace?\u003c\/strong\u003e\u003cbr\u003eA: The Pentair 59023500 replaces the complete internal D.E. grid assembly on compatible FNS Plus 36 sq. ft. D.E. filters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this include all the grids?\u003c\/strong\u003e\u003cbr\u003eA: Yes. This assembly includes eight 18-inch grids, commonly configured as seven full grids and one partial grid.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this already assembled?\u003c\/strong\u003e\u003cbr\u003eA: Yes. This is commonly sold as a pre-assembled complete grid assembly, making it easier to install compared to replacing each grid individually.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which filter does this fit?\u003c\/strong\u003e\u003cbr\u003eA: This part is designed for the Pentair FNS Plus 36 sq. ft. D.E. filter, commonly listed as model FNSP36. It may also fit select older Pentair, PacFab, Purex, and American Products FNS Plus 36 sq. ft. filters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this include the tank or filter housing?\u003c\/strong\u003e\u003cbr\u003eA: No. This is only the internal grid assembly. It does not include the filter tank, clamp, lid, valve, plumbing, or D.E. powder.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: When should I replace the full grid assembly?\u003c\/strong\u003e\u003cbr\u003eA: Replace the full assembly if multiple grids are torn, cracked, warped, heavily scaled, or if the manifold or tie rods are damaged.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52762833781046,"sku":"PEN59023500 -H","price":349.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/PEN59023500_0.jpg?v=1755535766"},{"product_id":"pentair-cap-plug-for-fns-plus-filter-190030z","title":"Pentair Cap Plug for FNS Plus Filter | 190030Z","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair 190030Z Cap Plug is a genuine replacement drain cap plug designed for select Pentair pool and spa filters, including FNS Plus, Clean \u0026amp; Clear Plus, and Quad D.E. filter models. This 1-1\/2\" drain plug cap assembly helps seal the filter drain outlet, preventing leaks during normal operation and allowing convenient access during filter draining, maintenance, or winterization.\u003c\/p\u003e\n\u003cp\u003eBuilt as an OEM replacement part, the Pentair 190030Z is ideal for replacing a cracked, stripped, leaking, or missing drain cap plug on compatible Pentair filter systems.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003ePool owners and service professionals replacing the drain cap plug on compatible Pentair FNS Plus, Clean \u0026amp; Clear Plus, or Quad D.E. filters.\u003c\/p\u003e\n\u003cp\u003eThis part is especially useful when the existing drain cap is damaged, difficult to tighten, leaking, or no longer sealing properly.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eGenuine Pentair OEM Replacement:\u003c\/strong\u003e Manufactured as an original Pentair replacement part for proper fit and reliable performance with compatible Pentair filter systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDesigned for FNS Plus Filters:\u003c\/strong\u003e Commonly used with Pentair FNS Plus D.E. filter models, including FNSP24, FNSP36, FNSP48, and FNSP60.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlso Fits Clean \u0026amp; Clear Plus and Quad D.E. Filters:\u003c\/strong\u003e Compatible with select Pentair Clean \u0026amp; Clear Plus cartridge filters and Quad D.E. filters that use the same drain cap plug style.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1-1\/2\" Drain Cap Plug:\u003c\/strong\u003e Designed as a 1-1\/2\" threaded drain cap plug for compatible filter drain outlets.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHelps Prevent Filter Drain Leaks:\u003c\/strong\u003e Creates a secure seal at the filter drain port when installed with the proper gasket or O-ring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUseful for Maintenance and Winterization:\u003c\/strong\u003e Allows the filter to be drained when needed for service, cleaning, storage, or winter preparation.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eReplacing a worn or damaged drain cap plug can help prevent unwanted water leaks from the filter drain outlet and restore a secure seal during normal filter operation. The Pentair 190030Z is a direct replacement for compatible Pentair filters, making it a practical part to keep on hand for routine filter service and repairs.\u003c\/p\u003e\n\u003cp\u003eFor best results, inspect the gasket or O-ring during replacement and replace it if worn, flattened, cracked, or missing.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDrain Cap Plug \/ Cap Plug Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003e190030Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e190030Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC \/ Barcode\u003c\/td\u003e\n\u003ctd\u003e788379883256\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlternate UPC Reference\u003c\/td\u003e\n\u003ctd\u003e788379722708\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplaces \/ Related Part Number\u003c\/td\u003e\n\u003ctd\u003e190030\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e1-1\/2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Type\u003c\/td\u003e\n\u003ctd\u003eNPT \/ MPT style listed by sources\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter Series\u003c\/td\u003e\n\u003ctd\u003ePentair FNS Plus, Clean \u0026amp; Clear Plus, and Quad D.E.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible FNS Plus Models\u003c\/td\u003e\n\u003ctd\u003eFNSP24, FNSP36, FNSP48, FNSP60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturing Date Reference\u003c\/td\u003e\n\u003ctd\u003eCommonly listed for filters manufactured after 5\/21\/05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGasket \/ O-Ring\u003c\/td\u003e\n\u003ctd\u003eUse with compatible gasket 86300500 or O-ring O-71 #325, depending on application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eApproximately 2-1\/2\" L x 3\" H x 2-1\/2\" W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePool and spa filter drain plug replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement Type\u003c\/td\u003e\n\u003ctd\u003eCap plug only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.25 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (Shipping)\u003c\/td\u003e\n\u003ctd\u003e3 x 3 x 3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003e\u003cstrong\u003eCustomer-Facing Q\u0026amp;A\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the Pentair 190030Z used for?\u003c\/strong\u003e\u003cbr\u003eA: It is a replacement drain cap plug used to seal the drain outlet on compatible Pentair pool and spa filters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this fit Pentair FNS Plus filters?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it is commonly listed for Pentair FNS Plus models FNSP24, FNSP36, FNSP48, and FNSP60.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this fit other Pentair filters?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it is also commonly listed for compatible Clean \u0026amp; Clear Plus cartridge filters and Quad D.E. filters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this a genuine Pentair part?\u003c\/strong\u003e\u003cbr\u003eA: Yes, Pentair 190030Z is a genuine Pentair replacement part.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the O-ring or gasket included?\u003c\/strong\u003e\u003cbr\u003eA: Listings may vary. This part is commonly referenced for use with gasket 86300500 or O-ring O-71 #325. Always confirm whether the gasket or O-ring is included before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: When should this cap plug be replaced?\u003c\/strong\u003e\u003cbr\u003eA: Replace it if the cap is cracked, leaking, stripped, difficult to tighten, missing, or no longer sealing properly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should the pump be off before removing this plug?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Always turn off the pump, relieve filter pressure, and follow the filter manufacturer’s service instructions before removing any drain plug or filter component.\u003c\/p\u003e\n\u003csection id=\"psd-manuals-sell-sheets\"\u003e\u003ch2\u003eManuals \u0026amp; Sell Sheets\u003c\/h2\u003e\n\u003cp\u003eManufacturer reference documents for this equipment family. Confirm your exact model and production revision before use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-install-guide-2025.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (2025 edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-vertical-grid-de-filter.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (previous edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52762923598134,"sku":"PEN190030Z -H","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/Pentair-190030Z-2.jpg?v=1782426749"},{"product_id":"pentair-fns-plus-tank-lid-assembly-48-sq-ft-170021","title":"Pentair FNS Plus Tank Lid Assembly 48 sq ft | 170021","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair FNS Plus Tank Lid Assembly 48 sq ft | 170021 is a genuine Pentair replacement tank lid designed for the Pentair FNS Plus FNSP48 48 sq ft D.E. pool and spa filter. This replacement lid helps restore the filter’s sealing surface, pressure integrity, and safe operation when the original lid is cracked, damaged, worn, or no longer sealing properly.\u003c\/p\u003e\n\u003cp\u003eBuilt from fiberglass-reinforced polypropylene, this lid is designed for strength, chemical resistance, and durability in pool equipment environments. It is commonly listed for use with the FNS Plus 48 sq ft vertical grid D.E. filter and is identified with UPC 788379670818.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003ePentair FNS Plus FNSP48 filters\u003c\/p\u003e\n\u003cp\u003e48 sq ft D.E. pool and spa filters\u003c\/p\u003e\n\u003cp\u003eReplacing cracked or damaged filter lids\u003c\/p\u003e\n\u003cp\u003eRestoring proper tank sealing\u003c\/p\u003e\n\u003cp\u003eFilter tank repairs\u003c\/p\u003e\n\u003cp\u003ePool equipment pad service work\u003c\/p\u003e\n\u003cp\u003eD.E. filter maintenance\u003c\/p\u003e\n\u003cp\u003eProfessional pool service technicians\u003c\/p\u003e\n\u003cp\u003eOEM filter part replacement\u003c\/p\u003e\n\u003cp\u003eResidential pool filtration systems\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eGenuine Pentair replacement part:\u003c\/strong\u003e OEM lid assembly designed for compatible FNS Plus filters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits FNS Plus 48 sq ft filter:\u003c\/strong\u003e made for the Pentair FNSP48 D.E. filter model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRestores tank sealing:\u003c\/strong\u003e helps maintain proper filter pressure and leak-free operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFiberglass-reinforced polypropylene construction:\u003c\/strong\u003e strong, chemical-resistant material built for pool equipment environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTan \/ cream finish:\u003c\/strong\u003e matches compatible FNS Plus filter tank assemblies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDesigned for D.E. filtration systems:\u003c\/strong\u003e supports safe operation of vertical grid D.E. filters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eService replacement solution:\u003c\/strong\u003e replaces only the tank lid instead of the complete filter when the bottom tank and internal components are still usable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOEM fit and function:\u003c\/strong\u003e designed to match supported Pentair filter part diagrams.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePressure-system component:\u003c\/strong\u003e critical part for safe filtration operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProfessional service part:\u003c\/strong\u003e recommended for qualified pool equipment repair and installation.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair 170021 tank lid assembly helps restore safe, dependable operation to compatible FNS Plus 48 sq ft D.E. filters. A damaged lid can cause leaks, poor sealing, pressure loss, unsafe operation, or difficulty keeping the filter properly clamped.\u003c\/p\u003e\n\u003cp\u003eReplacing the lid with the correct OEM part helps maintain the filter’s original design fit and pressure-rated sealing performance. This is especially important because pool filters operate under pressure and must be assembled with the correct lid, clamp, O-ring, and tank components.\u003c\/p\u003e\n\u003cp\u003eFor pool professionals, the 170021 is a practical repair part for extending the service life of a compatible FNS Plus FNSP48 filter without replacing the entire filter system.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003ePentair FNS Plus Tank Lid Assembly 48 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eFNS Plus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Compatibility\u003c\/td\u003e\n\u003ctd\u003eFNSP48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e170021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e170021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDistributor Product Number\u003c\/td\u003e\n\u003ctd\u003ePAC-051-0021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC \/ Barcode\u003c\/td\u003e\n\u003ctd\u003e788379670818\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFilter tank lid assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type Compatibility\u003c\/td\u003e\n\u003ctd\u003eD.E. pool and spa filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter Size\u003c\/td\u003e\n\u003ctd\u003e48 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter Model\u003c\/td\u003e\n\u003ctd\u003ePentair FNS Plus FNSP48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eFiberglass-reinforced polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eTan \/ cream\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApprox. Dimensions\u003c\/td\u003e\n\u003ctd\u003e21\" L x 21\" W x 26\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Weight Reference\u003c\/td\u003e\n\u003ctd\u003eApprox. 18–20 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eReplacement filter tank lid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComplete Filter Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Clamp Included\u003c\/td\u003e\n\u003ctd\u003eNo, unless specifically supplied by seller packaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank O-Ring Included\u003c\/td\u003e\n\u003ctd\u003eNo, unless specifically supplied by seller packaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Grid Assembly Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir Relief Valve Included\u003c\/td\u003e\n\u003ctd\u003eMay vary by packaging; verify contents before fulfillment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEquipment Category\u003c\/td\u003e\n\u003ctd\u003ePool filter replacement parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM \/ Aftermarket\u003c\/td\u003e\n\u003ctd\u003eGenuine Pentair OEM replacement part\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfessional Installation Recommended\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSold As\u003c\/td\u003e\n\u003ctd\u003eEach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eIncluded Components\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Pentair 170021 FNS Plus 48 sq ft tank lid assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eFilter bottom tank, clamp band, tank O-ring, internal grid assembly, manifold, pressure gauge, air relief valve, drain assembly, D.E. powder, plumbing fittings, and installation labor are sold separately unless specifically included by the supplier.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWarranty \u0026amp; Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis tank lid assembly is designed for the Pentair FNS Plus 48 sq ft D.E. filter, commonly referenced as FNSP48.\u003c\/p\u003e\n\u003cp\u003eCommon compatibility references include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePentair FNS Plus FNSP48\u003c\/li\u003e\n\u003cli\u003ePentair FNS Plus 48 sq ft D.E. filter\u003c\/li\u003e\n\u003cli\u003ePentair filter tank bottom assembly 170017, where applicable\u003c\/li\u003e\n\u003cli\u003eReplacement applications requiring part 170021\u003c\/li\u003e\n\u003cli\u003eOlder PacFab \/ Pentair FNS Plus 48 sq ft filter lid replacement applications where confirmed by part diagram\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlways confirm the filter model number, tank size, filter label, clamp style, lid part number, tank bottom compatibility, and parts diagram before ordering. This lid is not universal for all FNS Plus filter sizes.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis lid should be installed by a qualified pool professional. Pool filters operate under pressure, and incorrect assembly can create serious safety hazards.\u003c\/p\u003e\n\u003cp\u003eBefore servicing the filter, turn off the pump, shut down all related equipment, and fully relieve system pressure using the air relief valve. Inspect the tank O-ring, clamp band, tank bottom, sealing surfaces, and air relief assembly before reassembly.\u003c\/p\u003e\n\u003cp\u003eNever operate the filter with a damaged clamp, damaged O-ring, cracked tank component, or improperly seated lid. After installation, restart the system carefully, bleed air from the filter, check for leaks, and verify normal operating pressure.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCustomer-Facing Q\u0026amp;A\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the Pentair 170021?\u003c\/strong\u003e\u003cbr\u003eA: It is a genuine Pentair replacement tank lid assembly for the FNS Plus 48 sq ft D.E. filter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the SKU?\u003c\/strong\u003e\u003cbr\u003eA: The SKU is 170021.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the UPC \/ barcode?\u003c\/strong\u003e\u003cbr\u003eA: The UPC \/ barcode is 788379670818.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What filter does this fit?\u003c\/strong\u003e\u003cbr\u003eA: This lid fits the Pentair FNS Plus FNSP48 48 sq ft D.E. filter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this for a cartridge filter?\u003c\/strong\u003e\u003cbr\u003eA: No. This part is designed for the FNS Plus D.E. filter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What material is the lid made from?\u003c\/strong\u003e\u003cbr\u003eA: It is made from fiberglass-reinforced polypropylene.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What color is the lid?\u003c\/strong\u003e\u003cbr\u003eA: The lid is commonly listed as tan \/ cream.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this include the complete filter?\u003c\/strong\u003e\u003cbr\u003eA: No. This listing is for the tank lid assembly only.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this include the clamp or tank O-ring?\u003c\/strong\u003e\u003cbr\u003eA: No, unless specifically supplied by the seller packaging. Verify contents before fulfillment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this fit all FNS Plus filters?\u003c\/strong\u003e\u003cbr\u003eA: No. This lid is specifically for the 48 sq ft FNS Plus model. Other FNS Plus filter sizes use different parts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should this be professionally installed?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Professional installation is strongly recommended because pool filter tanks operate under pressure and must be assembled correctly for safe operation.\u003c\/p\u003e\n\u003csection id=\"psd-manuals-sell-sheets\"\u003e\u003ch2\u003eManuals \u0026amp; Sell Sheets\u003c\/h2\u003e\n\u003cp\u003eManufacturer reference documents for this equipment family. Confirm your exact model and production revision before use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-install-guide-2025.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (2025 edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-vertical-grid-de-filter.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (previous edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52762956235062,"sku":"PEN170021 -H","price":289.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/PEN170021_0_30141845-e53d-4c99-9be8-f94168ee9c73.jpg?v=1755537035"},{"product_id":"pentair-fns-plus-grid-assembly-48-sq-ft-59023400","title":"Pentair FNS Plus Grid Assembly 48 sq-ft | 59023400","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair 59023400 Grid Assembly is a genuine replacement complete D.E. grid assembly designed for the Pentair FNS Plus 48 sq. ft. D.E. filter. This pre-assembled internal grid cluster replaces the filter’s worn, torn, cracked, or damaged internal element assembly to help restore proper D.E. filtration performance.\u003c\/p\u003e\n\u003cp\u003eThis assembly is designed as a direct replacement for compatible 48 sq. ft. vertical-grid D.E. filters and includes the major internal grid components needed for a complete element cluster replacement.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003ePentair FNS Plus 48 sq. ft. D.E. filter repairs\u003c\/p\u003e\n\u003cp\u003eReplacing worn or torn D.E. grids\u003c\/p\u003e\n\u003cp\u003eReplacing a damaged internal grid cluster\u003c\/p\u003e\n\u003cp\u003eRestoring filter efficiency and water clarity\u003c\/p\u003e\n\u003cp\u003ePool service technicians\u003c\/p\u003e\n\u003cp\u003eResidential pool filter maintenance\u003c\/p\u003e\n\u003cp\u003eD.E. filter rebuilds\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eGenuine Pentair replacement grid assembly\u003c\/p\u003e\n\u003cp\u003eDesigned for FNS Plus 48 sq. ft. D.E. filters\u003c\/p\u003e\n\u003cp\u003eComplete pre-assembled internal element cluster\u003c\/p\u003e\n\u003cp\u003eIncludes eight 24-inch grids\u003c\/p\u003e\n\u003cp\u003eIncludes top manifold, bottom manifold, and tie rods\u003c\/p\u003e\n\u003cp\u003eDrop-in design helps simplify filter rebuilds\u003c\/p\u003e\n\u003cp\u003eRestores proper D.E. filtration performance\u003c\/p\u003e\n\u003cp\u003eIdeal replacement when multiple grids or manifolds are damaged\u003c\/p\u003e\n\u003cp\u003eDesigned for compatible Pentair, PacFab, and select American Products 48 sq. ft. D.E. filters\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair 59023400 complete grid assembly helps restore filtration performance by replacing the internal D.E. grid cluster inside a compatible FNS Plus 48 filter. Over time, D.E. grids can tear, crack, warp, collapse, or become clogged with scale and oils that no longer clean out properly.\u003c\/p\u003e\n\u003cp\u003eReplacing the complete assembly can improve water clarity, filter efficiency, and system performance. Because this assembly is pre-assembled, it helps save time compared to rebuilding the filter with individual grids, manifolds, and tie rods separately.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eComplete D.E. Grid Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eGrid Assembly for FNS Plus 48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e59023400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003e59023400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM \/ Aftermarket\u003c\/td\u003e\n\u003ctd\u003eGenuine Pentair Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eD.E. Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Size\u003c\/td\u003e\n\u003ctd\u003e48 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid Length\u003c\/td\u003e\n\u003ctd\u003e24 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid Quantity\u003c\/td\u003e\n\u003ctd\u003e8 Total Grids\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003eTop manifold, bottom manifold, grids, and tie rods\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter Model\u003c\/td\u003e\n\u003ctd\u003ePentair FNS Plus 48 \/ FNSP48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon Compatible Filter\u003c\/td\u003e\n\u003ctd\u003ePentair FNS Plus 48 sq. ft. D.E. Filter, model 180008\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional Listed Compatibility\u003c\/td\u003e\n\u003ctd\u003eSelect Pentair, PacFab, and American Products 48 sq. ft. D.E. filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Use\u003c\/td\u003e\n\u003ctd\u003eReplaces complete internal D.E. element grid cluster\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSold As\u003c\/td\u003e\n\u003ctd\u003eComplete grid assembly only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarcode\u003c\/td\u003e\n\u003ctd\u003e788379681715\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e24.42 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (Shipping)\u003c\/td\u003e\n\u003ctd\u003e17.75 x 18 x 29.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003e\u003cstrong\u003eWarranty \u0026amp; Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eConfirm Before Ordering\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eConfirm your filter model and square footage before ordering. This assembly is for the FNS Plus 48 sq. ft. D.E. filter and uses 24-inch grids. It is not for FNS Plus 24, 36, or 60 sq. ft. models.\u003c\/p\u003e\n\u003cp\u003eAlways relieve system pressure, shut off equipment, and follow the filter manufacturer’s service instructions before opening any pressurized filter tank.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCustomer-Facing Q\u0026amp;A\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does the Pentair 59023400 replace?\u003c\/strong\u003e\u003cbr\u003eA: The Pentair 59023400 replaces the complete internal D.E. grid assembly on compatible FNS Plus 48 sq. ft. D.E. filters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this include all the grids?\u003c\/strong\u003e\u003cbr\u003eA: Yes. This assembly includes eight 24-inch D.E. grids.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this already assembled?\u003c\/strong\u003e\u003cbr\u003eA: Yes. This is commonly sold as a pre-assembled complete grid assembly, making it easier to install compared to replacing each grid individually.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which filter does this fit?\u003c\/strong\u003e\u003cbr\u003eA: This part is designed for the Pentair FNS Plus 48 sq. ft. D.E. filter, commonly listed as model FNSP48 and filter model 180008.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this include the filter tank?\u003c\/strong\u003e\u003cbr\u003eA: No. This is only the internal grid assembly. It does not include the filter tank, clamp, lid, valve, air relief assembly, plumbing, or D.E. powder.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this fit the FNS Plus 60 filter?\u003c\/strong\u003e\u003cbr\u003eA: No. The FNS Plus 60 uses a different grid assembly. This part is for the 48 sq. ft. model only.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: When should I replace the full grid assembly?\u003c\/strong\u003e\u003cbr\u003eA: Replace the full assembly if multiple grids are torn, cracked, warped, heavily scaled, collapsed, or if the manifold or tie rods are damaged.\u003c\/p\u003e\n\u003csection id=\"psd-manuals-sell-sheets\"\u003e\u003ch2\u003eManuals \u0026amp; Sell Sheets\u003c\/h2\u003e\n\u003cp\u003eManufacturer reference documents for this equipment family. Confirm your exact model and production revision before use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-install-guide-2025.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (2025 edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-vertical-grid-de-filter.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (previous edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52762981695798,"sku":"PEN59023400 -H","price":389.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/PEN59023400_0.jpg?v=1755537905"},{"product_id":"pentair-fns-plus-36-sq-ft-de-filter-ec-180007","title":"Pentair FNS Plus 36 sq ft DE Filter | EC-180007","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair FNS Plus 36 sq ft DE Filter | EC-180007 is a high-performance diatomaceous earth pool filter designed to deliver exceptionally clear water for residential inground pool systems. With 36 square feet of effective filtration area and a rated flow of 72 GPM, this filter provides strong dirt-holding capacity and fine-particle filtration.\u003c\/p\u003e\n\u003cp\u003eThe FNS Plus series uses curved vertical grids to maximize filter surface area and improve filtration efficiency. Its internal design is engineered to reduce flow restriction, helping the filter achieve strong performance with less pumping effort. Pentair lists the FNS Plus series as fiberglass-reinforced polypropylene filters with a maximum continual operating pressure of 50 PSI, and flow rate is based on 2 GPM per square foot of filter area.\u003c\/p\u003e\n\u003cp\u003eBuilt with a durable fiberglass-reinforced polypropylene tank, a Service-Ease™ grid pack, and integrated air-relief features, the EC-180007 is a strong choice for pool owners who want premium DE filtration and professional-grade durability.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eResidential inground swimming pools\u003c\/p\u003e\n\u003cp\u003ePool owners wanting superior water clarity\u003c\/p\u003e\n\u003cp\u003eReplacing older DE filters\u003c\/p\u003e\n\u003cp\u003eUpgrading from sand filtration\u003c\/p\u003e\n\u003cp\u003ePool systems requiring 72 GPM filter flow\u003c\/p\u003e\n\u003cp\u003ePools with fine dust, pollen, and small debris\u003c\/p\u003e\n\u003cp\u003eEquipment pad upgrades\u003c\/p\u003e\n\u003cp\u003eProfessional pool equipment installations\u003c\/p\u003e\n\u003cp\u003eCustomers who prefer DE filtration performance\u003c\/p\u003e\n\u003cp\u003eSystems using backwash valves or separation tanks\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e36 sq ft DE filtration area:\u003c\/strong\u003e provides fine-particle filtration for clear, polished pool water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e72 GPM flow rate:\u003c\/strong\u003e supports efficient circulation for properly sized pool systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVertical curved grid design:\u003c\/strong\u003e maximizes filter surface area and helps improve filter performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFiberglass-reinforced polypropylene tank:\u003c\/strong\u003e strong, chemical-resistant construction for long service life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eService-Ease™ grid pack:\u003c\/strong\u003e designed for convenient one-at-a-time grid servicing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTop manifold design:\u003c\/strong\u003e supports efficient DE filtration and easier maintenance access.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReduced internal flow restriction:\u003c\/strong\u003e helps maintain efficient hydraulic performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHigh Flow manual air relief valve:\u003c\/strong\u003e helps release trapped air during startup and operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContinuous internal air relief:\u003c\/strong\u003e helps reduce air buildup inside the tank during circulation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTension control clamp:\u003c\/strong\u003e provides secure tank closure and easier service access.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1.5\" drain reference:\u003c\/strong\u003e conveniently located drain supports filter maintenance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible with all common pool sanitizers:\u003c\/strong\u003e suitable for properly maintained chlorine, bromine, and saltwater systems.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair FNS Plus EC-180007 helps produce sparkling pool water by using DE filtration, one of the finest common pool filtration methods. DE media can capture very small particles, helping remove dust, pollen, and fine debris that may pass through many standard sand filters.\u003c\/p\u003e\n\u003cp\u003eThe 36 sq ft grid pack provides a strong balance of flow and filtration area for many residential pool systems. Its curved grid design helps maximize usable filter surface area, while the fiberglass-reinforced tank offers long-term strength in outdoor pool environments.\u003c\/p\u003e\n\u003cp\u003eFor pool professionals, the Service-Ease grid pack and secure clamp design make routine cleaning and grid service more manageable. For pool owners, the result is dependable filtration, clear water, and a durable filter platform from Pentair.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003ePentair FNS Plus 36 sq ft DE Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eFNS Plus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eFNSP36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eEC-180007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelated Part Number\u003c\/td\u003e\n\u003ctd\u003e180007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eEC-180007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDistributor Product Number\u003c\/td\u003e\n\u003ctd\u003ePAC-05-0083\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC \/ GTIN\u003c\/td\u003e\n\u003ctd\u003e788379500498\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDE pool filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eVertical grid diatomaceous earth filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEffective Filtration Area\u003c\/td\u003e\n\u003ctd\u003e36 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Rate\u003c\/td\u003e\n\u003ctd\u003e72 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Rate Basis\u003c\/td\u003e\n\u003ctd\u003e2 GPM per sq ft of filter area\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8-Hour Turnover Capacity\u003c\/td\u003e\n\u003ctd\u003eApprox. 34,560 gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10-Hour Turnover Capacity\u003c\/td\u003e\n\u003ctd\u003eApprox. 43,200 gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12-Hour Turnover Capacity\u003c\/td\u003e\n\u003ctd\u003eApprox. 51,840 gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Media\u003c\/td\u003e\n\u003ctd\u003eDiatomaceous earth, sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid Style\u003c\/td\u003e\n\u003ctd\u003eCurved vertical grids\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid Pack Style\u003c\/td\u003e\n\u003ctd\u003eService-Ease grid pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank Material\u003c\/td\u003e\n\u003ctd\u003eFiberglass-reinforced polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir Relief\u003c\/td\u003e\n\u003ctd\u003eHigh Flow manual air relief valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Air Relief\u003c\/td\u003e\n\u003ctd\u003eContinuous internal air relief\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Operating Pressure\u003c\/td\u003e\n\u003ctd\u003e50 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Operating Water Temperature\u003c\/td\u003e\n\u003ctd\u003e104°F \/ 40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrain Size Reference\u003c\/td\u003e\n\u003ctd\u003e1.5\" drain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired Valve\u003c\/td\u003e\n\u003ctd\u003eCompatible Pentair backwash valve, slide valve, or multiport valve sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePool water filtration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePool Type\u003c\/td\u003e\n\u003ctd\u003eResidential inground pool systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEquipment Category\u003c\/td\u003e\n\u003ctd\u003ePool filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProfessional Installation Recommended\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSold As\u003c\/td\u003e\n\u003ctd\u003eEach\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e70 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e21.5 in. W x 43 in. H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVertical Clearance\u003c\/td\u003e\n\u003ctd\u003e62 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (Shipping)\u003c\/td\u003e\n\u003ctd\u003e22.5 x 22.5 x 34.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eIncluded Components\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e1 × Pentair FNS Plus 36 sq ft DE filter tank assembly\u003c\/li\u003e \u003cli\u003e1 × internal vertical grid pack\u003c\/li\u003e \u003cli\u003e1 × top manifold assembly\u003c\/li\u003e \u003cli\u003e1 × High Flow manual air relief valve\u003c\/li\u003e \u003cli\u003e1 × tank clamp assembly\u003c\/li\u003e \u003cli\u003eInternal air relief components\u003c\/li\u003e \u003cli\u003eDrain assembly\u003c\/li\u003e \u003cli\u003eManufacturer-supplied installation documentation\u003c\/li\u003e \u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eBackwash valve, multiport valve, slide valve, DE powder, plumbing valves, unions, additional fittings, separation tank, pressure gauge parts, replacement grids, O-rings, and installation labor are sold separately unless specifically included by the supplier.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWarranty \u0026amp; Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Pentair EC-180007 is designed for residential inground pool systems requiring a 36 sq ft DE filter with a 72 GPM flow rating.\u003c\/p\u003e\n\u003cp\u003eCommon compatibility and application references include:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePentair FNS Plus FNSP36\u003c\/li\u003e \u003cli\u003ePentair part number 180007\u003c\/li\u003e \u003cli\u003eSystems requiring DE filtration\u003c\/li\u003e \u003cli\u003ePool systems using compatible Pentair backwash valves\u003c\/li\u003e \u003cli\u003ePool systems requiring up to 72 GPM filter flow\u003c\/li\u003e \u003cli\u003eResidential inground pool filtration upgrades\u003c\/li\u003e \u003c\/ul\u003e\n\u003cp\u003eCompatible valve options may include Pentair slide or multiport valves depending on plumbing layout and installation requirements. Always confirm valve size, valve type, plumbing size, equipment pad layout, and local code requirements before ordering.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis filter should be installed by a qualified pool professional. Proper installation requires correct plumbing alignment, compatible valve selection, pressure testing, DE charging, flow verification, and safe startup.\u003c\/p\u003e\n\u003cp\u003eBefore installation, confirm that the connected pump does not exceed the filter’s 72 GPM flow rating or 50 PSI maximum operating pressure. The filter must be installed on a level, stable equipment pad with enough clearance for clamp removal, grid service, and tank access.\u003c\/p\u003e\n\u003cp\u003eAlways turn off the pump and relieve all system pressure before opening the filter. Never loosen or remove the clamp while the filter is pressurized.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCustomer-Facing Q\u0026amp;A\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the Pentair EC-180007?\u003c\/strong\u003e\u003cbr\u003eA: It is a Pentair FNS Plus 36 sq ft vertical-grid DE pool filter, also commonly referenced as model FNSP36.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the SKU?\u003c\/strong\u003e\u003cbr\u003eA: The SKU is EC-180007.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the UPC \/ GTIN?\u003c\/strong\u003e\u003cbr\u003eA: The UPC \/ GTIN is 788379500498.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the related Pentair part number?\u003c\/strong\u003e\u003cbr\u003eA: The related part number is 180007.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the filtration area?\u003c\/strong\u003e\u003cbr\u003eA: This filter provides 36 sq ft of effective DE filtration area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the flow rate?\u003c\/strong\u003e\u003cbr\u003eA: The rated flow is 72 GPM.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the 8-hour turnover capacity?\u003c\/strong\u003e\u003cbr\u003eA: At 72 GPM, the 8-hour turnover capacity is approximately 34,560 gallons.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this filter include the valve?\u003c\/strong\u003e\u003cbr\u003eA: No. The backwash valve, multiport valve, or slide valve is sold separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this filter include DE powder?\u003c\/strong\u003e\u003cbr\u003eA: No. DE powder is sold separately and must be added during startup according to the filter instructions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What material is the tank made from?\u003c\/strong\u003e\u003cbr\u003eA: The tank is made from fiberglass-reinforced polypropylene.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum operating pressure?\u003c\/strong\u003e\u003cbr\u003eA: The maximum continual operating pressure is 50 PSI.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this for inground pools?\u003c\/strong\u003e\u003cbr\u003eA: Yes. This filter is commonly used for residential inground pool systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should this be professionally installed?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Professional installation is recommended to ensure proper valve selection, plumbing, pressure safety, DE charging, and system setup.\u003c\/p\u003e\n\u003csection id=\"psd-manuals-sell-sheets\"\u003e\u003ch2\u003eManuals \u0026amp; Sell Sheets\u003c\/h2\u003e\n\u003cp\u003eManufacturer reference documents for this equipment family. Confirm your exact model and production revision before use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-install-guide-2025.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (2025 edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-vertical-grid-de-filter.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (previous edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":53264545448246,"sku":"EC-180007","price":1229.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/pentair-48-sq-ft-fns-plus-de-de-filter-ec-180008-pool-supply-depot-2183994.webp?v=1792464449"},{"product_id":"pentair-fns-plus-d-e-filter-60-sq-ft-ec-180009","title":"Pentair FNS Plus D.E. Filter, 60 Sq. Ft. | EC-180009","description":"\u003ch2\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Pentair FNS® Plus 60 Sq. Ft. D.E. Filter (EC-180009) is a high-capacity vertical-grid filtration system designed to provide exceptional water clarity for large residential swimming pools and pool-and-spa combinations. Its 60 square feet of effective filtration area supports a maximum rated flow of 120 GPM.\u003c\/p\u003e\n\u003cp\u003eThe FNS Plus uses diatomaceous earth-coated grids to capture extremely fine dirt, algae and suspended debris. Pentair states that D.E. filtration can capture particles as small as approximately 5 microns, helping produce polished, sparkling pool water.\u003c\/p\u003e\n\u003cp\u003eCurved vertical grids maximize the available filtration area, while the internal flow design helps reduce hydraulic restriction and pumping demand. The fiberglass-reinforced polypropylene tank provides chemical resistance, structural strength and dependable outdoor performance.\u003c\/p\u003e\n\u003cp\u003eThe EC-180009 is Pentair’s e-commerce version of the FNSP60. The complete internal grid assembly is included; however, a compatible backwash valve and D.E. filter media are sold separately.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eIdeal For\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eLarge residential in-ground swimming pools\u003c\/p\u003e\n\u003cp\u003ePool-and-spa combinations\u003c\/p\u003e\n\u003cp\u003eHigh-capacity filtration systems\u003c\/p\u003e\n\u003cp\u003eNew pool construction\u003c\/p\u003e\n\u003cp\u003eEquipment-pad renovations\u003c\/p\u003e\n\u003cp\u003ePools affected by fine dust, pollen or algae\u003c\/p\u003e\n\u003cp\u003eApplications requiring exceptionally clear water\u003c\/p\u003e\n\u003cp\u003eSystems operating at flow rates up to 120 GPM\u003c\/p\u003e\n\u003cp\u003ePool owners who prefer D.E. filtration performance\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e60 sq. ft. effective filtration area\u003c\/p\u003e\n\u003cp\u003eMaximum rated flow of 120 GPM\u003c\/p\u003e\n\u003cp\u003eVertical-grid D.E. filtration\u003c\/p\u003e\n\u003cp\u003eFilters particles as small as approximately 5 microns\u003c\/p\u003e\n\u003cp\u003eComplete internal grid assembly included\u003c\/p\u003e\n\u003cp\u003eSeven full-size grids and one partial grid\u003c\/p\u003e\n\u003cp\u003eCurved grids maximize usable filtration area\u003c\/p\u003e\n\u003cp\u003eTop-to-bottom backwashing\u003c\/p\u003e\n\u003cp\u003eEasily removable grid pack\u003c\/p\u003e\n\u003cp\u003eFiberglass-reinforced polypropylene tank\u003c\/p\u003e\n\u003cp\u003eChemical- and corrosion-resistant construction\u003c\/p\u003e\n\u003cp\u003eHigh Flow™ manual air-relief valve\u003c\/p\u003e\n\u003cp\u003eContinuous internal air-relief system\u003c\/p\u003e\n\u003cp\u003eConveniently positioned drain\u003c\/p\u003e\n\u003cp\u003e2-inch plumbing connections\u003c\/p\u003e\n\u003cp\u003eMaximum continuous operating pressure of 50 PSI\u003c\/p\u003e\n\u003cp\u003eMaximum internal water temperature of 104°F\u003c\/p\u003e\n\u003cp\u003eE-commerce-designated model\u003c\/p\u003e\n\u003cp\u003ePentair designed the FNS Plus with curved grids, a removable grid pack, top-to-bottom backwashing and an internal configuration that minimizes flow restriction.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eCaptures finer particles than typical sand filtration\u003c\/p\u003e\n\u003cp\u003eHelps produce exceptionally clear, polished pool water\u003c\/p\u003e\n\u003cp\u003eLarge 60 sq. ft. grid area provides high dirt-holding capacity\u003c\/p\u003e\n\u003cp\u003eSupports longer operating periods between cleanings\u003c\/p\u003e\n\u003cp\u003eCurved grids maximize filtration surface\u003c\/p\u003e\n\u003cp\u003eInternal design helps reduce hydraulic restriction\u003c\/p\u003e\n\u003cp\u003eRemovable grid pack simplifies deep cleaning\u003c\/p\u003e\n\u003cp\u003eDurable tank resists pool chemicals and corrosion\u003c\/p\u003e\n\u003cp\u003eTop-to-bottom backwashing helps remove accumulated debris\u003c\/p\u003e\n\u003cp\u003eHigh Flow air relief supports efficient operation\u003c\/p\u003e\n\u003cp\u003eCompatible with properly matched slide or multiport valves\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003ePentair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003eFNS® Plus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eFNSP60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Part Number\u003c\/td\u003e\n\u003ctd\u003eEC-180009\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Part Number\u003c\/td\u003e\n\u003ctd\u003e180009\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eEC-180009\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eVertical-Grid D.E. Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEffective Filtration Area\u003c\/td\u003e\n\u003ctd\u003e60 sq. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Rated Flow\u003c\/td\u003e\n\u003ctd\u003e120 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEight-Hour Turnover Capacity\u003c\/td\u003e\n\u003ctd\u003e57,600 Gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTen-Hour Turnover Capacity\u003c\/td\u003e\n\u003ctd\u003e72,000 Gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTwelve-Hour Turnover Capacity\u003c\/td\u003e\n\u003ctd\u003e86,400 Gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Diameter\u003c\/td\u003e\n\u003ctd\u003eApproximately 21.5 Inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired Vertical Clearance\u003c\/td\u003e\n\u003ctd\u003eApproximately 86 Inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInitial D.E. Charge\u003c\/td\u003e\n\u003ctd\u003eApproximately 6 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlumbing Connections\u003c\/td\u003e\n\u003ctd\u003e2 Inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Continuous Operating Pressure\u003c\/td\u003e\n\u003ctd\u003e50 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Internal Water Temperature\u003c\/td\u003e\n\u003ctd\u003e104°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank Material\u003c\/td\u003e\n\u003ctd\u003eFiberglass-Reinforced Polypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid Configuration\u003c\/td\u003e\n\u003ctd\u003eSeven Full Grids and One Partial Grid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrid Assembly Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackwash Valve Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD.E. Media Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eResidential Swimming Pools and Spas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE-Commerce Model\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e788379500597\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e90 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Height\u003c\/td\u003e\n\u003ctd\u003e55 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (Shipping)\u003c\/td\u003e\n\u003ctd\u003e22.5 x 22.5 x 50.5 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003ePentair’s published specifications list the FNSP60 with a 60 sq. ft. filter area, 120 GPM flow rate, 21.5-inch diameter, 86-inch servicing clearance and turnover capacities of 57,600, 72,000 and 86,400 gallons over eight, ten and twelve hours.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eGrid Assembly\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe FNSP60 uses a removable vertical-grid assembly consisting of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSeven full-size 30-inch grids\u003c\/li\u003e\n\u003cli\u003eOne partial 30-inch grid\u003c\/li\u003e\n\u003cli\u003eTop manifold with air bleed\u003c\/li\u003e\n\u003cli\u003eInternal air-bleed assembly\u003c\/li\u003e\n\u003cli\u003eGrid locator\u003c\/li\u003e\n\u003cli\u003eTie rod and retaining hardware\u003c\/li\u003e\n\u003cli\u003eOutlet standpipe\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eReplacement components include:\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eReplacement Component\u003c\/th\u003e\n\u003cth\u003ePentair Part Number\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComplete 60 Sq. Ft. Grid Assembly\u003c\/td\u003e\n\u003ctd\u003e59023300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull 30-Inch Grid\u003c\/td\u003e\n\u003ctd\u003e59003000 – Seven Required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePartial 30-Inch Grid\u003c\/td\u003e\n\u003ctd\u003e59002900 – One Required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e60 Sq. Ft. Tie Rod\u003c\/td\u003e\n\u003ctd\u003e59002700\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e60 Sq. Ft. Outlet Standpipe Assembly\u003c\/td\u003e\n\u003ctd\u003e190037\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003ePentair’s replacement-parts documentation identifies 59023300 as the complete FNSP60 grid assembly and specifies seven full grids plus one partial grid.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat’s Included\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePentair FNS Plus FNSP60 filter tank\u003c\/li\u003e\n\u003cli\u003eComplete 60 sq. ft. internal grid assembly\u003c\/li\u003e\n\u003cli\u003eSeven full-size grids\u003c\/li\u003e\n\u003cli\u003eOne partial grid\u003c\/li\u003e\n\u003cli\u003eTop manifold\u003c\/li\u003e\n\u003cli\u003eInternal air-bleed assembly\u003c\/li\u003e\n\u003cli\u003eGrid locator and retaining components\u003c\/li\u003e\n\u003cli\u003eTank clamp assembly\u003c\/li\u003e\n\u003cli\u003eHigh Flow™ manual air-relief valve\u003c\/li\u003e\n\u003cli\u003ePressure gauge\u003c\/li\u003e\n\u003cli\u003eDrain plug\u003c\/li\u003e\n\u003cli\u003eInstallation and operating documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe backwash valve, D.E. powder, plumbing unions, pipe, fittings and installation materials are not included unless specifically stated by the seller.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWarranty \u0026amp; Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eValve Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe EC-180009 requires a compatible valve to control normal filtration and backwashing. Depending on the equipment-pad configuration, the filter may be installed with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible Pentair slide valve\u003c\/li\u003e\n\u003cli\u003eCompatible Pentair multiport valve\u003c\/li\u003e\n\u003cli\u003eProperly matched 2-inch D.E. backwash valve\u003c\/li\u003e\n\u003cli\u003eD.E. separation tank where required by local regulations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConfirm the valve type, plumbing size and filter-port spacing before ordering. A valve designed for a sand filter must not be assumed compatible with a D.E. filter.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eD.E. Media Requirement\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe FNSP60 requires approximately 6 pounds of swimming-pool-grade diatomaceous earth to coat a clean grid assembly.\u003c\/p\u003e\n\u003cp\u003eD.E. powder is normally introduced through the pool skimmer after the circulation system has been started and trapped air has been safely released. The correct amount of media must be added after manual grid cleaning.\u003c\/p\u003e\n\u003cp\u003eFollowing backwashing, use the recharge quantity specified in the current Pentair installation manual. Never operate the filter for an extended period without properly coating the grids.\u003c\/p\u003e\n\u003cp\u003eUse only D.E. media approved for swimming-pool filtration. Follow the media manufacturer’s handling instructions and avoid inhaling dry powder.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFilter Maintenance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eBackwash the filter when pressure rises above the recorded clean starting pressure or when circulation becomes noticeably reduced. Fresh D.E. must be added after backwashing to recoat the grid surfaces.\u003c\/p\u003e\n\u003cp\u003eRemove and manually clean the complete grid assembly when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePressure remains elevated after backwashing\u003c\/li\u003e\n\u003cli\u003eNormal circulation is not restored\u003c\/li\u003e\n\u003cli\u003eThe filter is being winterized\u003c\/li\u003e\n\u003cli\u003eThe grids have heavy scale or oil accumulation\u003c\/li\u003e\n\u003cli\u003eThe pool has experienced a significant algae outbreak\u003c\/li\u003e\n\u003cli\u003eD.E. powder is returning to the pool\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInspect the grids for torn fabric, separated seams, damaged frames or cracked manifold components during every manual cleaning.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation Requirements\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eInstall the filter on a solid, level equipment pad with sufficient space for plumbing, valve operation and future servicing. Approximately 86 inches of total vertical clearance is required to remove the upper tank section and grid assembly.\u003c\/p\u003e\n\u003cp\u003eThe circulation system must be designed so that water flow does not exceed 120 GPM or the rating of the lowest-rated installed component.\u003c\/p\u003e\n\u003cp\u003ePlumbing must be mechanically supported so pipe weight does not place stress on the filter or valve. A properly sized backwash waste line or D.E. separation tank must be installed according to local requirements.\u003c\/p\u003e\n\u003cp\u003eTrapped air inside a pressurized filter can cause the tank lid to separate with extreme force. Before servicing:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eShut off electrical power to the pump.\u003c\/li\u003e\n\u003cli\u003ePrevent automatic pump restart.\u003c\/li\u003e\n\u003cli\u003eOpen the manual air-relief valve.\u003c\/li\u003e\n\u003cli\u003eConfirm the pressure gauge reads zero.\u003c\/li\u003e\n\u003cli\u003eWait until all pressure and trapped air have been released.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003ePentair requires installation by a qualified professional and emphasizes that trapped air in a pressurized filtration system can create a severe safety hazard.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eConfirm Before Ordering\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003ePlease verify:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe required model is FNS Plus FNSP60\u003c\/li\u003e\n\u003cli\u003eThe correct SKU is EC-180009\u003c\/li\u003e\n\u003cli\u003eA 60 sq. ft. D.E. filter is appropriate for the pool\u003c\/li\u003e\n\u003cli\u003eSystem flow does not exceed 120 GPM\u003c\/li\u003e\n\u003cli\u003eApproximately 86 inches of vertical clearance is available\u003c\/li\u003e\n\u003cli\u003eThe equipment pad can accommodate a filter approximately 21.5 inches in diameter\u003c\/li\u003e\n\u003cli\u003eExisting plumbing is compatible with 2-inch connections\u003c\/li\u003e\n\u003cli\u003eA compatible D.E. backwash valve is installed or will be purchased separately\u003c\/li\u003e\n\u003cli\u003eApproximately 6 lbs. of pool-grade D.E. is available for the initial charge\u003c\/li\u003e\n\u003cli\u003eLocal regulations permit D.E. discharge or require a separation tank\u003c\/li\u003e\n\u003cli\u003eThe valve and D.E. media are not expected to be included\u003c\/li\u003e\n\u003cli\u003eThe complete internal grid assembly is included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWarranty Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe EC-180009 is designated by Pentair for e-commerce sales. Warranty coverage is subject to Pentair’s current limited-warranty terms, authorized sales requirements and installation conditions.\u003c\/p\u003e\n\u003cp\u003eProfessional installation by a qualified pool professional is strongly recommended. Improper installation, operating the filter without the required D.E. coating, excessive system pressure, freeze damage, chemical misuse or failure to follow Pentair’s maintenance procedures may affect warranty eligibility.\u003c\/p\u003e\n\u003csection id=\"psd-manuals-sell-sheets\"\u003e\u003ch2\u003eManuals \u0026amp; Sell Sheets\u003c\/h2\u003e\n\u003cp\u003eManufacturer reference documents for this equipment family. Confirm your exact model and production revision before use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-install-guide-2025.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (2025 edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.pentair.com\/content\/dam\/extranet\/nam\/pentair-pool\/residential\/filters\/fns-plus\/manual\/fns-plus-vertical-grid-de-filter.pdf\" target=\"_blank\" rel=\"noopener\"\u003eManual: FNS Plus Owner's Manual (previous edition)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":54271183520054,"sku":"EC-180009","price":1519.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1167\/9798\/files\/pentair-60-sq-ft-fns-plus-de-pool-filter-ec-180009-pool-supply-depot-9064398.webp?v=1792464450"}],"url":"https:\/\/poolsupplydepot.net\/collections\/pentair-fns-plus-de-filters-parts.oembed","provider":"Pool Supply Depot","version":"1.0","type":"link"}