Watts 774-OSY 10" SS Double Check Valve Assembly

Watts 774 10 inch lead free stainless steel double check valve assembly backflow preventer is designed to prevent the reverse flow of contaminated water of non-potable quality from being pumped or siphoned into the potable water supply. The assembly has a lightweight stainless steel body, resilient seated outside stem and yoke gate valves, spring loaded cam-check valves, and test cocks.