Cam and Groove Coupling, Socket, Body Material Nylon, 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 225 psi, Socket Inside Diameter 3 in, Gasket Material Nitrile, Overall Length 85.5 mm, Includes Locking Arm No, Thread Size 2-1/2 in -8