Cam and Groove Coupling Socket Body Material Aluminum Type C Coupling Size 4 in For Hose I.D. 4 in Male Connection Type Hose Shank Hose Fitting Size 4 in Male Hose Shank Max Working Pressure @ 70 F 250 psi Plug Outside Dia 6 25/32 in Socket Inside Diameter 4 47/64 in Gasket Material Nitrile Overall Length 7 7/32 in Includes Locking Arm Yes