Aluminum 1 1/2" NH Female Quarter Turn Forestry Adapter Threads_NPSH 5 inch NH / NST

5 inch NH / NST couplings

The wye 2 1/2 inch NH Inlet x (2) 2 1/2 inch NH outlet allows for one stream to be divided into two separate streams

9 threads per inch and female 1 1/2 inch

In the fire service

Note - 3 inch NH / NST is very rare and is often confused with 2

Aluminum 1 1/2" NH Female Quarter Turn Forestry Adapter Threads_NPSH 5 inch NH / NSTAluminum 1 1 2 inch National Hose (NH NST) Quarter Turn Forestry Coupling. The Quarter Turn Forestry Couplings are made out of forged aluminum. Common quarter turn sexless head design (1 1 2 inch QT fitting will mate with 1 inch QT or 3 4 inch QT). ULC approved for use up to 300 PSI.