Cam and Groove Coupling, Socket, Body Material 316 Stainless Steel, Type D, Coupling Size 2 1/2 in, Female, Connection Type NPT, Hose Fitting Size 2 1/2 in, FNPT, Max. Working Pressure @ 70 F 150 psi, Socket Inside Diameter 3 1/64 in, Gasket Material Nitrile, Overall Length 3 9/32 in, Includes Locking Arm Yes, Thread Size 2 1/2 In.-8