Item - Check Valves Check Valve, Flow Design Single, Mechanism and Body Design Inline Spring, Body Material - Valves PVC, Pipe or Tube Size 1 in, Connection Type Socket/Threaded x Socket/Threaded, Cracking Pressure 2.000 to 3.000 psi, Mounting Orientation Horizontal, Vertical, Seal Material EPDM, Max. Temp. - Valves 140 Degrees F, Max. Steam Pressure - Valves Not Rated, Seat Material EPDM, Spring Material Stainless Steel, Application - Valves General Purpose, Length 5 15/64 in, Width 2 11/16 in