Watts BF03 121 4G 8 Part of the BF03 121 Series mainline adatile 250 PSI at 406 degree 250 PSI at 406 degree F Outlet Connection Size 1 1 4 IN Outlet Connection Type Female Threaded Outlet Thread Type NPT Part Number 0220205 Plug Material Cast Iron Pressure Temperature Rating 400 PSI at 150 degree F Specifications Backflow Preventer Type Dual Check with Atmospheric Vent Body Finish Bronze Body Material Bronze Body Pattern Inline Brand Watts Bypass No Bypass Size Does Not Apply To Product Cap And Tether No Disc Material EPDM EAN 098268162004 Elbow Fitting No Environmental Product Declaration No Hazard Protection Level Non Health Hazard Hot And Harsh Water No Hydrant Connection No Inlet Connection Size 1 2 IN Inlet Connection Size Metric 15 MM Inlet Connection Type Press Inlet Shutoff Valve Type No Shutoff Valve Inlet Thread Type IPS Lead Free Not In Scope Maximum Temperature Fahrenheit 212 Maximum Working Pressure BAR 6 It is to be used with ANSI 125 or 150 class flanges and comply with API 609 and MSS SP 67 standards aluminum bronze disc