Aluminum 3" Female Camlock x 2" Male NPT Storz Size_4" Rigid Storz This cap features a 9

This cap features a 9 inch chain for a secure connection to the wall or equipment

double jacket or rubber covered hose for other applications

The female side of this adapter will only connect to a 2 1/2 inch male camlock

The female camlock cap will only fit a 4 inch male camlock

It can even be referred to as NHT or National Hose Thread but NST or NH is more common these days

Aluminum 3" Female Camlock x 2" Male NPT Storz Size_4" Rigid Storz This cap features a 9Global type "B" aluminum 3 inch female camlock (Cam & Groove) coupler to 2 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 a 3 inch male camlock The male threaded side of this adapter will only connect to a 2 inch female National Pipe Straight Hose (NPSH) or National Pipe Tapered (NPT), for example, PVC or metal