{"product_id":"pentairfnsplustanklidassembly60sf170022pen170022","title":"Pentair FNS Plus Tank Lid Assembly 60 sf | 170022","description":"\u003ch2\u003ePentair 170022 – Replacement Tank Lid for FNS Plus 60 sq ft DE Filter\u003c\/h2\u003e\n\u003cp\u003eThe Pentair 170022 is the OEM replacement tank lid assembly designed for the FNS Plus 60 sq ft diatomaceous-earth (DE) pool filter. This lid closes and seals the filter tank, ensuring the internal pressure and flow–through during filtration and backwash cycles are maintained properly.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTank lid assembly sized for 60 sq ft FNS Plus DE filters (model FNSP60).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eManufactured from pool-rated, corrosion-resistant materials compatible with DE filtration systems.\u003c\/li\u003e\n\u003cli\u003eOEM-spec part — designed to match the original FNS Plus tank geometry and clamp assembly for a correct, leak-free fit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Pentair\u003c\/li\u003e\n\u003cli\u003ePart Number: 170022\u003c\/li\u003e\n\u003cli\u003eIntended Filter Model: FNS Plus 60 sq ft DE filter (FNSP60 and compatible variants)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaterial: Pool \/ DE filter-rated thermoplastic \/ molded plastic suitable for pressurized filter tanks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Use \/ Replace\u003c\/h3\u003e\n\u003cp\u003eReplace the 170022 lid if the original is cracked, warped, leaking. Replacement is also necessary if the lid can no longer form a reliable seal — common causes include freeze damage, impact damage, or chemical degradation. A proper tank lid is critical to maintain safe, efficient filtration performance in DE filters.\u003c\/p\u003e\n\u003ch3\u003eInstallation \u0026amp; Maintenance Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTurn off the pump and relieve all pressure before removing the old lid — always ensure the system is depressurized before maintenance.\u003c\/li\u003e\n\u003cli\u003eInspect the sealing surface on top of the filter tank and the gasket \/ O-ring (if present) — clean or replace as needed to ensure a tight seal.\u003c\/li\u003e\n\u003cli\u003eTransfer the pressure gauge and air-relief valve from the old lid to the new one, ensuring components are properly seated and tightened.\u003c\/li\u003e\n\u003cli\u003eRe-install the clamp band (or clamp ring) evenly around the tank, gradually tightening to avoid deforming the lid or tank.\u003c\/li\u003e\n\u003cli\u003eAfter installation, refill and prime the system — check for leaks at the lid seam, clamps, and around the air-relief before running the pump under full pressure.\u003c\/li\u003e\n\u003cli\u003ePeriodically inspect the lid for cracks, UV degradation, or chemical damage — replace immediately if the integrity is compromised.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":46797791330479,"sku":"170022","price":312.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6415\/2239\/files\/pentair-fns-plus-tank-lid-assembly-60-sf-170022-pool-filter-parts-4934939.jpg?v=1777067390","url":"https:\/\/freshized.com\/products\/pentairfnsplustanklidassembly60sf170022pen170022","provider":"Freshized","version":"1.0","type":"link"}