{"product_id":"drain-vent-valve","title":"Pentair Rainbow Drain Vent Valve, Black","description":"\u003cp\u003eThe Pentair Rainbow R172224X is the black drain and vent valve used on Rainbow equipment. It handles two jobs, bleeding trapped air out of the housing and draining it when the unit is opened for service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere it fits\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRainbow lists it for the Dynamic Series cartridge filters and for the High Capacity HC Series chemical feeders, which covers the HC-3315, HC-3330 and HC-3340 chlorinator models. Worth checking your parts diagram against the valve you are holding before ordering, since the two product families share it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen to replace it\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eVent valves are a routine wear item. Once the threads or the seal give up, the valve weeps whenever the system is under pressure. The o-ring for the Dynamic Series drain and vent valve is a separate part, so replace both if the old one has taken a set.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48626993496276,"sku":"RAI-051-3480","price":10.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_37677717-68cd-4070-a2d4-3e50e6fe430b.jpg?v=1788718852","url":"https:\/\/www.activepoolsupply.com\/products\/drain-vent-valve","provider":"Active Pool Supply","version":"1.0","type":"link"}