{"product_id":"pentair-fns-plus-grid-assembly-48-sq-ft-59023400","title":"Pentair FNS Plus Grid Assembly 48 sq-ft | 59023400","description":"\u003ch2 class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\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\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\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\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eIdeal For\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePentair FNS Plus 48 sq. ft. D.E. filter repairs\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eReplacing worn or torn D.E. grids\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eReplacing a damaged internal grid cluster\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eRestoring filter efficiency and water clarity\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePool service technicians\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eResidential pool filter maintenance\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eD.E. filter rebuilds\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eGenuine Pentair replacement grid assembly\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDesigned for FNS Plus 48 sq. ft. D.E. filters\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eComplete pre-assembled internal element cluster\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIncludes eight 24-inch grids\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIncludes top manifold, bottom manifold, and tie rods\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDrop-in design helps simplify filter rebuilds\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eRestores proper D.E. filtration performance\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIdeal replacement when multiple grids or manifolds are damaged\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eDesigned for compatible Pentair, PacFab, and select American Products 48 sq. ft. D.E. filters\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eBenefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\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\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\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\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePentair\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eComplete D.E. Grid Assembly\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Name\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGrid Assembly for FNS Plus 48\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSKU\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e59023400\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer Part Number\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e59023400\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOEM \/ Aftermarket\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGenuine Pentair Replacement\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFilter Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eD.E. Filter\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFilter Size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e48 sq. ft.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eGrid Length\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 in.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eGrid Quantity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Total Grids\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eIncludes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eTop manifold, bottom manifold, grids, and tie rods\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCompatible Filter Model\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePentair FNS Plus 48 \/ FNSP48\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCommon Compatible Filter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePentair FNS Plus 48 sq. ft. D.E. Filter, model 180008\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAdditional Listed Compatibility\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSelect Pentair, PacFab, and American Products 48 sq. ft. D.E. filters\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePrimary Use\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eReplaces complete internal D.E. element grid cluster\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSold As\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eComplete grid assembly only\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBarcode\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e788379681715\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eCustomer-Facing Q\u0026amp;A\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhat does the Pentair 59023400 replace?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe Pentair 59023400 replaces the complete internal D.E. grid assembly on compatible FNS Plus 48 sq. ft. D.E. filters.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDoes this include all the grids?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eYes. This assembly includes eight 24-inch D.E. grids.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eIs this already assembled?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eYes. This is commonly sold as a pre-assembled complete grid assembly, making it easier to install compared to replacing each grid individually.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhich filter does this fit?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThis part is designed for the Pentair FNS Plus 48 sq. ft. D.E. filter, commonly listed as model FNSP48 and filter model 180008.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDoes this include the filter tank?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eNo. 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\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWill this fit the FNS Plus 60 filter?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eNo. The FNS Plus 60 uses a different grid assembly. This part is for the 48 sq. ft. model only.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhen should I replace the full grid assembly?\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eReplace the full assembly if multiple grids are torn, cracked, warped, heavily scaled, collapsed, or if the manifold or tie rods are damaged.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eConfirm Before Ordering\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\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\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlways relieve system pressure, shut off equipment, and follow the filter manufacturer’s service instructions before opening any pressurized filter tank.\u003c\/span\u003e\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","url":"https:\/\/poolsupplydepot.net\/products\/pentair-fns-plus-grid-assembly-48-sq-ft-59023400","provider":"Pool Supply Depot","version":"1.0","type":"link"}