{"product_id":"1-4-air-release-valve-kit","title":"Pentair 1\/4\" Air Release Valve Kit","description":"\u003cp\u003eThe Pentair 075207Z is a 1\/4 in. air release valve kit, the manual relief valve listed with the CF ABS cartridge filter. It is the genuine Pentair part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEvery cartridge filter needs a way to let air out. When the pump is primed or the filter has been opened for a cartridge change, air collects at the top of the tank. Opening the relief valve until a steady stream of water appears clears it, so the filter fills with water instead of running against an air pocket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRelief valves fail in two ways. They weep or drip when they should be shut, or they seize so they will not open at all. Either one is a reason to fit a new valve rather than try to rebuild the old one. Open the valve before loosening a clamp or lid, and never run the filter with the valve blocked.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48634764001492,"sku":"PUR-051-8204","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_ebaf31bd-0127-4d49-92a8-d152cf209cff.jpg?v=1788836712","url":"https:\/\/www.activepoolsupply.com\/products\/1-4-air-release-valve-kit","provider":"Active Pool Supply","version":"1.0","type":"link"}