Check Valve Material of Construction Polypropylene Size 1/2 In. Connection Type FNPT Length 2-19/32 In. Width 1-1/2 In. Overall Height 1-1/2 In. Cap to Inlet Center 5-7/16 In. Cracking Pressure 0.5 psi Max Temp 180 Degrees F Mounting Position Any Seat Material Viton Seal Material Viton