Dixon 2040-Aa-Al Spool Adapter, 2X4in, 100 Psi, Male Adapter
Cam and Groove Spool Adapter, Plug, Body Material Aluminum, Type AA, Coupling Size 2 in x 4 in, Male, Connection Type Male Adapter x Male Adapter, Male Adapter x Male Adapter, Max. 2 31/64 in, 4 23/32 in, Overall Length 5 23/64 in, Includes Locking Arm Yes, Plug Length 1 7/8 in.