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Working pressures may vary with the construction of the hose
The hydrant flushing elbow attaches to the 4 1/2 inches NH / NST outlet of the fire hydrant
Plug meets or exceeds NFPA requirements
Can also be used as a spanner wrench on rocker lug and pin lug style fire hose couplings and other fire fittings
0 inch NPT or NPSH male hose coupling is 3
Aluminum 3" Female Camlock x 4" Male Camlock (USA) Inlet Threads_NH / NST Working pressures may vary withAluminum 3 inch female camlock (Cam & Groove) coupler to 4 inch male camlock (Cam & Groove) coupler. Under no circumstances should cam and groove couplings be used for compressed air or steam service! Connections The female side of this adapter will only connect to a 3 inch male camlock The male side of this adapter will only connect to a 4 inch female camlock How it works To make a connection, simply slide the camlock adapter into the camlock