Ames 2000SS-OSY-TS 4" SS Double Check Assembly with Tamper Switch

Ames 200SS lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of contaminated water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure. The assembly has a lightweight stainless steel body, outside stem and yoke resilient seated gate valves, UL Listed tamper switch, spring loaded cam-check valves, and test cocks.