{"product_id":"air-relief-tube-1","title":"Hayward Air Relief Tube CX2030Z3","description":"\u003cp\u003eThe Hayward CX2030Z3 is the air relief tube for SwimClear cartridge filters. It is the genuine Hayward part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWater fills a cartridge tank from the bottom and air gets pushed to the top, where it sits above the water line as a pocket. The relief tube reaches up into that pocket so that opening the manual relief valve on the lid actually releases air rather than just water. Without it the tank runs with air trapped inside, which costs you filter area and can make the pressure gauge read oddly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCheck the model first\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSwimClear covers a range of tank sizes and the source lists this tube against two overlapping sets of model numbers, so read the label on your filter and match it before ordering. It is a small part and easiest to fit while the tank is already apart for a cartridge clean.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48629279850708,"sku":"HAY-051-1202","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_55f108f8-b73f-45cf-b5c3-a8f974f08a38.jpg?v=1788761871","url":"https:\/\/www.activepoolsupply.com\/products\/air-relief-tube-1","provider":"Active Pool Supply","version":"1.0","type":"link"}