Aluminum 3" Female Camlock x 3" Male NPT Couplings_Brass has a female camlock and

has a female camlock and a female pipe thread of the same size

and 2 1/2" hose

Equivalent part number - RHA2520T

The knobs are constructed from brass with chrome plating and will not mar the threads

Aluminum 3" Female Camlock x 3" Male NPT Couplings_Brass has a female camlock andGlobal type "B" aluminum 3 inch female camlock (Cam & Groove) coupler to 3 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 3 inch male camlock The male threaded side of this adapter will only connect to a 3 inch female National Pipe Tapered (NPT) or National Pipe Straight Hose (NPSH) thread, for example, PVC or