{"product_id":"pentair-59023300-vertical-grid-fns-plue-filter-cartridge","title":"Pentair FNS Plus Grid Assembly 60 sq-ft | 59023300","description":"\u003ch2 dir=\"auto\" class=\"PDq2pG_selectionAnchorContainer\"\u003eProduct Overview\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp dir=\"auto\"\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 dir=\"auto\"\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 dir=\"auto\"\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 dir=\"auto\"\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Pentair OEM replacement assembly\u003c\/li\u003e\n\u003cli\u003eComplete internal element grid assembly\u003c\/li\u003e\n\u003cli\u003eDesigned for Pentair FNS Plus 60 D.E. filters\u003c\/li\u003e\n\u003cli\u003eProvides 60 square feet of filtration area\u003c\/li\u003e\n\u003cli\u003eUses 30-inch vertical filter grids\u003c\/li\u003e\n\u003cli\u003eReplaces damaged, worn, or deteriorated grid clusters\u003c\/li\u003e\n\u003cli\u003eCaptures fine dirt and suspended debris\u003c\/li\u003e\n\u003cli\u003eHelps restore proper filtration and water clarity\u003c\/li\u003e\n\u003cli\u003eEliminates the need to assemble individual replacement grids\u003c\/li\u003e\n\u003cli\u003eManufactured for correct fit and alignment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 dir=\"auto\"\u003eProduct Specifications\u003c\/h2\u003e\n\u003cdiv dir=\"auto\" class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable dir=\"auto\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 dir=\"auto\"\u003eCompatibility\u003c\/h2\u003e\n\u003cp dir=\"auto\"\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 dir=\"auto\"\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\u003ch2 dir=\"auto\"\u003eWhen to Replace the Grid Assembly\u003c\/h2\u003e\n\u003cp dir=\"auto\"\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 dir=\"auto\"\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\u003ch2 dir=\"auto\"\u003eInstallation Information\u003c\/h2\u003e\n\u003cp dir=\"auto\"\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 dir=\"auto\"\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 dir=\"auto\"\u003eProfessional installation is recommended if you are unfamiliar with pressurized pool filtration systems.\u003c\/p\u003e\n\u003ch2 dir=\"auto\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3 dir=\"auto\"\u003eIs 59023300 a complete grid assembly?\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eYes. 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\u003ch3 dir=\"auto\"\u003eDoes this fit the Pentair FNS Plus 60?\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eYes. Part 59023300 is the specified complete element grid assembly for the Pentair FNS Plus 60, model FNSP60.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eWill it fit an FNS Plus 48 filter?\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eNo. The FNS Plus 48 uses a different assembly. Pentair part 59023400 is specified for the 48-square-foot model.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eWhat size are the filter grids?\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThe FNS Plus 60 assembly uses 30-inch grids and provides 60 square feet of filtration area.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eDoes this include the filter tank or clamp?\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eNo. 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\u003ch3 dir=\"auto\"\u003eDo I need to add D.E. powder after installation?\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eYes. 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\u003ch3 dir=\"auto\"\u003eWhy is D.E. powder returning to the pool?\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eCommon 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","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","url":"https:\/\/poolsupplydepot.net\/products\/pentair-59023300-vertical-grid-fns-plue-filter-cartridge","provider":"Pool Supply Depot","version":"1.0","type":"link"}