Aluminum 4" Male Camlock Dust Plug Female Threads_NPT If you have any doubt

If you have any doubt it is best to contact your local fire department for size and thread type in your area

The back flush flap will open to aid in releasing debris

This 36" long version holds 150 feet of 1 1/2" or 1 3/4" hose

Equivalent part number - FM10S76

Aluminum 4" Male Camlock Dust Plug Female Threads_NPT If you have any doubtGlobal type "DP" aluminum 4 inch male camlock (Cam & Groove) dust plug. Under no circumstances should cam and groove couplings be used for compressed air or steam service! Connections The male side of this adapter will only connect to 4 inch female camlock How it works To make a connection, simply slide the camlock adapter into the camlock coupling and with normal hand pressure, press the cam levers down. Uncoupling is as quick and simple as coupling.