WATTS, USA 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 back pressure.
It consists of bronze body construction (1/4 to 2 in., 8 to 50mm) or FDA approved epoxy coated cast iron (2 1/2 to 3 in., 65 to 80mm), two,