Cam and Groove Coupling, Socket, Body Material Polypropylene, Type B, Coupling Size 3 in, Male, Connection Type NPT, Hose Fitting Size 3 in, MNPT, Max. Working Pressure @ 70 F 150 psi, Socket Inside Diameter 3 5/8 in, Gasket Material EPDM, Overall Length 3 13/16 in, Includes Locking Arm No, Thread Size 3 in -8