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