End 1 Diameter: 4 in. Material: PVC. Maximum Pressure: 5 psi. End 3 Diameter: 3/4 in. Maximum Temperature: 250 deg. F. Valve Type: Ball. VALVE BACKWATER PVC 4" by SIOUX CHIEF MfrPartNo 869-S4PPK Maximum Temperature: 250 deg. FMaximum Pressure: 5 psiEnd 3 Diameter: 3/4 in.End 1 Diameter: 4 in.Valve Type: Ball