The 3'''' 375AOSY Reduced Pressure Principle Backflow Assembly, with flanged end OS&Y gate valves, is utilized where a potential high health hazard exists and is ideal for use when lead-free valves are required protecting against both backsiphonage and backpressure of contaminated water into the potable water supply. The 375A includes a lightweight, grooved, inside and out epoxy-coated ductile iron valve body eliminating exposure to corrosion. The Zurn Wilkins low headloss Compound Check and offers the lowest lifecycle costs on the market.
