Cam and Groove Coupling Socket Body Material 304 Stainless Steel Type B Coupling Size 1 1/2 in Male Connection Type NPT Hose Fitting Size 1 1/2 in MNPT Max Working Pressure @ 70 F 250 psi Socket Inside Diameter 2 1/8 in Gasket Material Nitrile Overall Length 69.5 mm Includes Locking Arm No Thread Size 1-1/2 in -11-1/2