{"product_id":"pentair-pro-grad-e-fns-plus-48-d-e-filter-pentair-lid-assembly-48-sq-ft-fns-plus-170021","title":"Pentair 170021 Lid Assembly 48 Sq Ft FNS Plus – Pro Grad.E. Fns Plus 48 D E Filter","description":"\u003cdiv class=\"rte\"\u003e\n\u003ch2\u003ePentair 170021 Tank Lid Assembly for FNS Plus 48 Sq Ft DE Filter\u003c\/h2\u003e\n\u003cp\u003eGenuine Pentair 170021 tank lid assembly for FNS Plus 48 Sq Ft DE filters. Durable, corrosion-resistant construction ensures long-lasting performance.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Pentair replacement part (170021)\u003c\/li\u003e\n\u003cli\u003eCompatible with FNS Plus 48 Sq Ft DE filters\u003c\/li\u003e\n\u003cli\u003eConstructed from fiberglass-reinforced polypropylene\u003c\/li\u003e\n\u003cli\u003eResistant to pool chemicals and UV degradation\u003c\/li\u003e\n\u003cli\u003eIncludes high-flow manual air relief valve\u003c\/li\u003e\n\u003cli\u003eDesigned for residential pool and spa applications\u003c\/li\u003e\n\u003cli\u003eEasy to install and maintain\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe Pentair 170021 Tank Lid Assembly is a direct replacement for the FNS Plus 48 Sq Ft DE filter. Constructed from fiberglass-reinforced polypropylene, it offers superior strength and resistance to pool chemicals and UV degradation. This assembly includes a high-flow manual air relief valve, facilitating a straightforward installation process. Designed for residential pool and spa systems, it helps maintain optimal filtration efficiency and system integrity.\u003c\/p\u003e\n\u003ch3\u003ePro Tip\u003c\/h3\u003e\n\u003cp\u003eWhen replacing the tank lid assembly, ensure the air relief valve is properly installed to prevent air buildup, which can affect filtration performance.\u003c\/p\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cp\u003eEnsure the filter is completely depressurized before beginning installation. Verify compatibility with your specific filter model to prevent installation issues.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":46826885611686,"sku":"170021","price":386.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/9698\/1414\/files\/170021_1__47896.1597085694.386.513__20901.jpg?v=1762813109","url":"https:\/\/kypoolsupply.com\/products\/pentair-pro-grad-e-fns-plus-48-d-e-filter-pentair-lid-assembly-48-sq-ft-fns-plus-170021","provider":"Kentucky Pool Supply","version":"1.0","type":"link"}