Watts 4" LF909-OSY Lead Free Cast Iron RPZ Assembly

Series LF909 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 FDA approved epoxy coated cast iron body construction with stainless steel trim, bronze ball valve shutoffs, and bronze test cocks. Series LF909 features the "air-in/water-out" principle for protection during emergency combined backsiphonage and backpressure conditions It is ideal for health hazard cross-connections or for containment at the service line entrance. Check with local water authorities for installation requirements. Features Replaceable bronze seats Stainless steel internal parts No special tools required for servicing Captured spring check assemblies Fused epoxy coated & lined checks Industrial strength sensing hose Field reversible relief valve Air-in/water-out relief valve design provides maximum capacity during emergency conditions