The NYFD Female side of the adapter will hook into NYFD Male
5" fire hose coupled with NH/NST couplings
No more cross threading
5" NST (NH) Female Hose To 1
If you decide you want 500ft length instead
2.5" NPSH Female Pipe x 1.5" NPT Male Hydrant Adapter FM15F20T The NYFD Female side ofChange & Reduce Threads From 2. 5" NPSH Male To 1. 5" NPT Pipe. This will reduce your 2. 5" outlet or hose down from 2. 5" NPSH Female to 1. 5" NPT Male. Hook two different sizes of hose together, or connect to an outlet. It's one of the most popular and common way to connect different size hoses. Simply screw it on, and you're ready to go. The NPSH female can fit into NPSH, NPT, IPT, NPS, PVC, Etc. The NPT male can fit into NPT, NPSH, IPT, NPS, PVC,