NANTONG SENTIAN FIRE-FIGHTING EQUIPMENT CO.,LTD.
NH Coupling,NH Standard Coupling,NH Hose Coupling,NH Fire Hose Coupling
National Hose thread (NH) couplings, also known as National Standard Thread (NST). It is the most common type of fire hose coupling used in the United States. The male and female straight (non-tapered) threads screw together and the connection is sealed with a gasket.
NH Coupling include brass and aluminum NH couplings
NH couplings were used widely in Canada, USA and South American zone.
Main sizes include 1.5``,2`` and 2.5``.