Watts 3 4" x 3 4" LF7RU2 U2 Lead Free Dual Check Valve 0072221 VAIOB00XX7C9EC Standard O size seat washer Standard O size seat washer Coil Colors: Purple 3 4 inch union female NPT inlet by 3 4 union female NPT outlet Specifications Backflow Preventer Type Dual Check Body Finish Bronze Body Material Lead Free Brass Body Pattern Inline Brand Watts Bypass No Cap And Tether No Disc Material Santoprene EAN 098268824902 Elbow Fitting No Hazard Protection Level Non Health Hazard Hot And Harsh Water No Hydrant Connection No Inlet Connection Size 3 4 IN Inlet Connection Size Metric 19 MM Inlet Connection Type Union Female Threaded Inlet Shutoff Valve Type No Shutoff Valve Inlet Thread Type NPT Lead Free YES Maximum Temperature Fahrenheit 180 Maximum Working Pressure BAR 12