{"product_id":"pentair-261003-manual-air-relief-valve-2-3-8in-ns-fns","title":"Pentair 261003 Manual Air Relief Valve - 2-3\/8in, NS\/FNS","description":"\u003cp\u003e\u003cstrong\u003eWhat This Part Is Used For\u003c\/strong\u003e\u003cbr\u003ePentair 261003 Manual Air Relief Valve - 2-3\/8in, NS\/FNS is a replacement air relief valve for compatible Pentair Nautilus and FNS filter models. It allows manual release of trapped air from the filter tank.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy This Part Matters\u003c\/strong\u003e\u003cbr\u003eTrapped air can cause pressure fluctuations and inefficient filtration. A functioning air relief valve restores proper priming and pressure balance. Replacing a leaking or stuck valve prevents filter top leaks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features and Specifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eManufacturer part number 261003\u003c\/li\u003e\n\u003cli\u003eManual air relief valve\u003c\/li\u003e\n\u003cli\u003e2-3\/8in specification\u003c\/li\u003e\n\u003cli\u003eCompatible with NS and FNS filter models\u003c\/li\u003e\n\u003cli\u003eSupports safe air release\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eInstallation and Fitment Guidance\u003c\/strong\u003e\u003cbr\u003eRelieve filter pressure before removal. Confirm by manufacturer part number before ordering. Tighten securely without overtightening threads.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout the Pentair Brand\u003c\/strong\u003e\u003cbr\u003ePentair filters are widely installed in residential and commercial pools. Their serviceable air relief valves support safe startup and maintenance. Genuine Pentair parts maintain proper fit and sealing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon Service Context\u003c\/strong\u003e\u003cbr\u003eCommon during filter cleanings, seasonal startup, or resolving leaks at the filter top.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52078580269330,"sku":"261003","price":111.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/2279\/1186\/files\/PEN261003_0.jpg?v=1772562050","url":"https:\/\/www.aquaterrabackyard.com\/products\/pentair-261003-manual-air-relief-valve-2-3-8in-ns-fns","provider":"Aqua Terra Backyard","version":"1.0","type":"link"}