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 EPDM Max Temp - Valves 140 Degrees F Max Steam Pressure - Valves Not Rated Seat Material EPDM Application - Valves General Purpose Length 6 13/16 in Width 2 7/16 in Overall Height 4 7/32 in Standards ASTM