Aluminum 2 1/2" Cap (2 Pack) Durability_Excellent The male threaded side of

The male threaded side of this adapter will only connect to a 1 1/2 inch female National Pipe Tapered (NPT) or a National Pipe Straight Hose (NPSH) thread

By inserting the tail of the clamp into the tool

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

Made in USA

The female threaded side of this adapter will only connect to a 1 inch male National Pipe Tapered (NPT) thread

Aluminum 2 1/2" Cap (2 Pack) Durability_Excellent The male threaded side ofAluminum breakable cap prevents entry of foreign materials and protects the female threads on pin lug fire department inlet connections (FDC). Breakable to permit fast fire hose connection. Two eyebolts with nuts for attachment to female pin lug swivel are included. These caps will fit the most common Fire Department Connection (FDC) 2 1 2 inch NH NST. Finger tighten only Do Not Use Pliers!