{"title":"Backflow Devices - Wilkins - DCVA - Double Check Valve Assemblies - 6\" - 450 Series","description":null,"products":[{"product_id":"wilkins-6-450-os-y-gate-valves","title":"Wilkins 6\" 450 OS\u0026Y Gate Valves","description":"\u003cp\u003eThe \u003cstrong\u003eWilkins Model 450 Double Check Valve Assembly\u003c\/strong\u003e with \u003cstrong\u003eOS\u0026amp;Y Gate Valves\u003c\/strong\u003e is designed for installation on \u003cstrong\u003epotable water lines\u003c\/strong\u003e to protect against both backsiphonage and backpressure of polluted water into the potable water supply. 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