Watts LF919 QT S FS 1 Part of the LF919 Series mainline siltfence Specifications Backflow Preventer Type Vacuum Specifications Backflow Preventer Type Vacuum Breaker Body Finish Chrome Body Material Lead Free Copper Silicon Alloy Body Pattern Does Not Apply To Product Brand Watts Buy American Act Compliant NO Bypass No Bypass Size Does Not Apply To Product Cap And Tether No Disc Material Rubber EAN 098268434798 Elbow Fitting No Hazard Protection Level Health Hazard Hot And Harsh Water No Hydrant Connection No Inlet Connection Size 3 4 IN Inlet Connection Size Metric 20 MM Inlet Connection Type Female Threaded Inlet Shutoff Valve Type No Shutoff Valve Inlet Thread Type GHT Lead Free YES Maximum Temperature Fahrenheit 180 Maximum Working Pressure BAR 8 Specifications Kit Type Seat Kit Lead Free YES Product Group BACKFLOW KITS UPC 098268459463 and air gap fitting Add on sensor connection kits are available for BMS and cellular communications