Caleffi 573009A Combination Fill Valve and Backflow Preventer

Combination Fill Valve and Backflow Preventer; Type Dual Check; Nominal Size 1/2 Inch; End Connection Soldered Union x Female Threaded; End to End Distance 9-1/8 Inch; Body Material Brass; Seal Material EPDM; Temperature Rating 150 Deg F; Pressure Rating 175 PSI; Application Water; Applicable Standard CSA (Canada and US), ASSE 1012; Pressure Setting Range 3 to 60 PSI; Pressure Factory Setting 15 PSI; Pressure Gauge Scale 0 to 60 PSI