Watts 957NRPDA OSY GPM FS 6 Part of the 957RPDA Series Access Tile This 1 inch freeze resistant This 1 inch freeze resistant pressure vacuum breaker backflow preventer helps prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage the drain withstands long term weather exposure and heavy use Specifications ArmorTek Technology No Backflow Preventer Type Reduced Pressure Detector Assembly Body Finish Stainless Steel Body Material Stainless Steel Body Pattern N Pattern Brand Watts Bypass Yes Bypass Size 3 4 IN Cap And Tether No Disc Material Silicone EAN 098268504033 Elbow Fitting No Hazard Protection Level Health Hazard Hot And Harsh Water No Hydrant Connection No Inlet Connection Size 6 IN Inlet Connection Size Metric 150 MM Inlet Connection Type Grooved Joint Inlet Shutoff Valve Type Outside Stem And Yoke Gate Valve Inlet Thread Type Does Not Apply To Product Lead Free No Maximum Temperature Fahrenheit 140 Maximum Working Pressure BAR 12 Specification Sheet Flood Sensor Connection Kit Watts (French)