Description
6" NPT Female x 4.5" NH (NST) Male Adapter Aluminum FM1515F 5" NYFD Fire Hose To FHS 16332 5" NYFD Fire Hose To 1 The difference is just that A pipe coupling is any fitting or device used to join two or more pipes in such a way that continuity is maintained between them A pipe & fire hose fitting adapter is used to connect straight pipe or hose sections