Aluminum 3" Male Camlock x 4" Male Camlock (USA) Inlet Threads_NH / NST Collar screws take a 5/16

Collar screws take a 5/16 inch allen wrench

Swing type fire hose storage reel will hold 1 1/2 inch or 2 1/2 inch single or double jacket hose

Constructed from 10 oz vinyl

No plain anodized

Aluminum 3" Male Camlock x 4" Male Camlock (USA) Inlet Threads_NH / NST Collar screws take a 5/16Type "A" aluminum 3 inch male camlock (Cam & Groove) coupler to 4 inch male camlock (Cam & Groove). 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 3 inch female camlock The opposite 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