Low Lead Spring Check Valve Material of Construction Bronze Size 3/8 In. Connection Type Threaded Length 1-7/32 In. Width 3/8 In. Overall Height 1-31/32 In. Cracking Pressure 0.75 to 1 psi Max Temp 353 Degrees F Mounting Position With Pressure Coming From Under the Disc Flow 2.5 gpm Standards NSF/ANSI 372