Watts 774-OSY 3" SS Double Check Valve Assembly

Watts 774 3 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.