Brass 4" Male Camlock x 4" Male NPT (USA) Female Size_4 1/2 Inch just use a flat shovel

just use a flat shovel and pry upward

NOTE: All NEW sprinkler heads should be installed with manufacturers specified head wrench

Under no circumstances should cam and groove couplings be used for compressed air or steam service

Locking hitchpins and quick links to secure hoses and anchor device during testing

Carbon Steel 6" Flange x 4 1/2" Female NH

Brass 4" Male Camlock x 4" Male NPT (USA) Female Size_4 1/2 Inch just use a flat shovelType "F" brass 4 inch male camlock (Cam & Groove) coupler to 4 inch male NPT threads. 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 The male threaded side of this adapter will only connect to a 4 inch female National Pipe Tapered (NPT) or a National Pipe Straight Hose (NPSH) thread, for example, PVC or metal pipe