{"product_id":"check-valve-1-1-2-2","title":"Jandy Check Valve, 1-1\/2\" \/ 2\"","description":"\u003cp\u003eThe Jandy 7235 is a two way check valve with 1-1\/2 inch internal and 2 inch external ports, which is why one part covers both of the common pool plumbing sizes. It is the genuine Jandy valve.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA check valve lets water move one way and blocks it the other. On a pool that means holding prime in the pump when the system shuts down, keeping water from running back out of a raised heater, and stopping a chlorinator or solar line from draining into the pool the moment the pump stops. It works quietly and you only notice it once it fails.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitting and sizing\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eJandy lists this one under its spring check valve family. Size it by the pipe you are cutting into: the internal port takes 1-1\/2 inch and the external port takes 2 inch. If your run is larger, Jandy makes matching valves in 2 inch \/ 2-1\/2 inch and 2-1\/2 inch \/ 3 inch, along with 90 degree versions when there is no room for a straight section.\u003c\/p\u003e","brand":"Waterpik Technologies","offers":[{"title":"Default Title","offer_id":48626563612884,"sku":"JDY-56-4083","price":63.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_abeb8f8b-fe3f-4b5b-af70-f16482a3dd02.png?v=1788712513","url":"https:\/\/www.activepoolsupply.com\/products\/check-valve-1-1-2-2","provider":"Active Pool Supply","version":"1.0","type":"link"}