{"product_id":"air-relief-tube-tr140-before-11-99","title":"Pentair Genuine OEM Air Relief Tube, TR140 Before 11\/99, 154438","description":"\u003cp\u003ePentair 154438 is the air relief tube for the Triton TR140 sand filter built before November 1999. It measures 27 inches long with a 1\/4 inch outside diameter, and it is the genuine manufacturer part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy the tube matters\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAir always ends up at the top of a filter tank, whether it came in when the pump lost prime or when the tank was opened for service. The air relief tube reaches that high point and carries the air out to the manual relief valve, which is how you bleed the filter before bringing the system back up. If the tube is cracked, kinked or missing, the valve draws water rather than air and the pocket at the top of the tank never clears.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCheck the build date\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis part is listed for the TR140 made before 11\/99. Pentair revised the Triton filters over their long production run, so read the date on the tank label instead of matching the model number alone.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWider listings\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe part is also filed under the Triton II side mount, Triton C-3 side mount and the commercial TR100C and TR140C sand filter parts groups. If your filter is one of those, confirm the length and outside diameter against the tube you are pulling out.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48634630668500,"sku":"PAC-051-2819","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_3b44cbf5-35ff-40e6-94e9-9612add6aa50.png?v=1788835612","url":"https:\/\/www.activepoolsupply.com\/products\/air-relief-tube-tr140-before-11-99","provider":"Active Pool Supply","version":"1.0","type":"link"}