{"product_id":"pentair-170020-lid-assembly-36sqft-fns-plus","title":"Pentair 170020 FNS Plus 36 Sq Ft Filter Lid Assembly","description":"\u003cp\u003e\u003cstrong\u003eWhat This Part Is Used For\u003c\/strong\u003e\u003cbr\u003ePentair 170020 Lid Assembly - 36Sqft, FNS Plus is a replacement lid for compatible FNS Plus 36Sqft filter systems. It seals the filter housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy This Part Matters\u003c\/strong\u003e\u003cbr\u003eA secure lid is essential for maintaining system pressure. Cracks or warped lids can cause leaks and air intrusion. Replacing the lid restores proper filtration performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features and Specifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePentair manufacturer part number 170020\u003c\/li\u003e\n\u003cli\u003eFor FNS Plus 36Sqft filter\u003c\/li\u003e\n\u003cli\u003eFilter lid assembly\u003c\/li\u003e\n\u003cli\u003eSeals filter housing\u003c\/li\u003e\n\u003cli\u003eOEM Pentair replacement part\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eInstallation and Fitment Guidance\u003c\/strong\u003e\u003cbr\u003eRelieve system pressure before removing the lid. Inspect O-ring and sealing surfaces during installation. Confirm by manufacturer part number before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout the Pentair Brand\u003c\/strong\u003e\u003cbr\u003ePentair manufactures cartridge filtration systems for residential pools. Their FNS Plus filters are widely used in the field. Using genuine Pentair lids ensures proper sealing and performance. Technicians rely on Pentair for dependable filtration components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon Service Context\u003c\/strong\u003e\u003cbr\u003eThis lid is commonly replaced when hairline cracks cause air leaks during filter operation.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52078614905106,"sku":"170020","price":269.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/2279\/1186\/files\/PEN170020_0.jpg?v=1772563095","url":"https:\/\/www.aquaterrabackyard.com\/products\/pentair-170020-lid-assembly-36sqft-fns-plus","provider":"Aqua Terra Backyard","version":"1.0","type":"link"}