Aluminum 4" Female Camlock x 4" Male NPT (USA) Color_Blue The female threaded side of

The female threaded side of this adapter will only connect to a 2 1/2 inch male National Hose (NH) or National Standard Thread (NST)

Cap gauge for testing static pressures in trucks or fire hydrants

NH threads are used by most fire departments and fire trucks

Brass NH couplings are standard (aluminum available)

This 3/8" smooth bore will flow 30 gpm @ 50 PSI at the tip

Aluminum 4" Female Camlock x 4" Male NPT (USA) Color_Blue The female threaded side ofGlobal type "B" aluminum 4 inch female 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 female side of this adapter will only connect to 4 inch male camlock The male threaded side of this adapter will only connect to a 4 inch female National Pipe Tapered (NPT) or National Pipe Straight Hose (NPSH) thread, for example, PVC or