
Common Types of Threads Used in Fire Hose and Fire …
QRFS carries a wide range of fire hose adapters designed to join fire hose, fire hydrants, and fire department connections with incompatible thread standards. Our stock of 1 1/2" and 2 1/2" brass adapters features NST, NPSH, and NPT-threaded fittings in configurations including Male x Male, x Male, and x .