Watts 009-QT 1 Inch Reduced Pressure Zone Backflow Preventer - Commercial & Residential Water Supply Protection for Irrigation, Fire Sprinkler & Plumbing 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.