Watts SS 3 TR TXG 4X4 Part of the TR2 Series ZA100F 4NH Specifications Backflow Preventer Type Dual 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 098268824537 Elbow Fitting No Hazard Protection Level Non Health Hazard Hot And Harsh Water No Hydrant Connection No Inlet Connection Size 1 IN Inlet Connection Size Metric 25 MM Inlet Connection Type Swivel Joint Inlet Shutoff Valve Type No Shutoff Valve Inlet Thread Type MTSF Lead Free YES Maximum Temperature Fahrenheit 180 Maximum Working Pressure BAR 10 and the drain comes standard with a no hub outlet 4 x 4 foot stainless steel transition riser is used to connect to the main building overhead fire system or potable water supply 200 psi pressure rating