Watts 009M3QT 3/4 Inch Reduced Pressure Zone Backflow Preventer - High-Quality Plumbing Device for Water Supply Protection | Ideal for Residential, Commercial & Irrigation Systems

Series 009 Reduced Pressure Zone Assemblies prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure. It consists of bronze body construction, two, in-line independent check valves, replaceable check seats with an intermediate relief valve, and ball valve test cocks.