Watts 957Z-RPDA-OSY-GPM 10" Reduced Pressure Detector Assembly

Watts 957ZRPDA 10 inch gallon per meter reduced pressure detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality from being pumped or siphoned into the potable water supply. The assembly has a stainless steel body with a quick access sleeve, torsion spring check valves, resilient seated gate valves with outside stem and yoke, test cocks, corrosive resistant bottom mounted pressure relief valve.