Watts LFU009M2 QT FS 1 1 2 Part of the LFU009 Series Window Well Extension Specifications Backflow Preventer Type Vacuum Specifications Backflow Preventer Type Vacuum Breaker Body Finish Brass Body Material Lead Free Brass Body Pattern Does Not Apply To Product Brand Watts Buy American Act Compliant YES Bypass No Cap And Tether No Disc Material Silicone EAN 098268434286 Elbow Fitting No Hazard Protection Level Health Hazard Hot And Harsh Water No Hydrant Connection No Inlet Connection Size 1 1 2 IN Inlet Connection Size Metric 40 MM Inlet Connection Type Female Threaded Inlet Shutoff Valve Type No Shutoff Valve Inlet Thread Type NPT Lead Free YES Maximum Temperature Fahrenheit 180 Maximum Working Pressure BAR 8 This 1 1 2 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 and replaceable check seats with an internal relief valve for reduced space requirements Specification Sheet Flood Sensor Connection Kit Watts (French)