Cam and Groove Coupling, Socket, Body Material Polypropylene, Type D, Coupling Size 3 in, Female, Connection Type NPT, Hose Fitting Size 3 in, FNPT, Max. Working Pressure @ 70 F 200 psi, Socket Inside Diameter 3 5/8 in, Gasket Material EPDM, Overall Length 3 19/32 in, Includes Locking Arm No, Thread Size 3 in -8