Watts 1 inch 007M1QT Double Check Valve 3504PCS Ensures the P 220 can operate Ensures the P 220 can operate at pressures up to 220 psi (15 Bar) 65 Unit Carton Width (in) 5 Specifications Backflow Preventer Type Double Check Valve Assembly Body Finish Cast Bronze Body Material Lead Free Bronze Body Pattern Inline Brand Watts Buy American Act Compliant YES Bypass No Cap And Tether No Disc Material Silicone EAN 098268209747 Elbow Fitting No Hazard Protection Level Non Health Hazard Hot And Harsh Water No Hydrant Connection No Inlet Connection Size 1 IN Inlet Connection Type Female Threaded Inlet Shutoff Valve Type Quarter Turn Ball Valve Inlet Thread Type NPT Lead Free YES Maximum Temperature Fahrenheit 180 Maximum Working Pressure BAR 12 This 1 inch lead free double check valve backflow preventer assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements