Item - Check Valves Check Valve, Flow Design Single, Mechanism and Body Design Y, Body Material - Valves PVC, Pipe or Tube Size 1 in, Connection Type Spigot x Spigot, Seal Material FPM, Max. Temp. - Valves 140 Degrees F, Max. Steam Pressure - Valves Not Rated, Seat Material FPM, Application - Valves General Purpose, Length 6 13/16 in, Width 2 7/16 in, Overall Height 4 7/32 in, Standards ASTM