CPVC Diaphragm Valve w/EPDM Diaphragm EPDM Seals socket/threaded end connections Valve Design 2-Way Pipe Size 1 in Connection Threaded x True Union Socket Coefficient of Volume 10 Length 7 19/20 in Max Pressure 150 psi Diaphragm Material EPDM Body Material CPVC Seal Material EPDM