{"product_id":"pentair-black-drain-vent-valve","title":"Pentair Black Drain Vent Valve","description":"\u003cp\u003eThe Pentair Black Drain Vent Valve (part number 190030) is a compact, manually operated pressure-relief component engineered primarily for the lower drainage manifolds of Pentair Clean \u0026amp; Clear Plus cartridge filters, as well as select FNS Plus and Quad D.E. filtration systems. Injection-molded from a high-density, UV-stabilized black polymer composite, this small valve functions as a vacuum breaker that allows pool service technicians to vent internal tank air when draining the system for winterization or routine element cleaning. By turning the textured external knob, the internal mechanism opens up a safe hydraulic venting pathway, preventing structural vacuum lock and ensuring the heavy filter tank empties quickly and completely. Built with robust external threads and integrated rubber seals to withstand high operational pressures and continuous exposure to harsh pool chemicals, this durable plumbing accessory is highly compact and lightweight, carrying a net product and shipping weight of approximately \u003cb\u003e0.08 pounds\u003c\/b\u003e (about 1.28 ounces).\u003c\/p\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":53322504765551,"sku":"R172224XZ","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/51cwIMIVepL._AC_UF894_1000_QL80.jpg?v=1782140894","url":"https:\/\/commercialpoolandspasupplies.com\/products\/pentair-black-drain-vent-valve","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}