This Dixon BAS974 brass swivel adapter has a 3/4" female GHT threaded end, a 1/2" female NPTF threaded end, and connects hoses of different types. This fitting has a female garden hose threads (GHT) to connect to a male GHT connection and a female National Pipe Taper Fuel (NPTF) threads to connect to a male NPTF connection. This adapter is made of brass for resistance to corrosion, ductility at high temperatures, and low magnetic permeability.Hose fittings connect, control, change the direction of, and terminate the flow in piping and hose systems. They are made of brass, stainless steel, galvanized steel, and other materials that resist corrosion, pressure, and wear. Hose fittings have various types of connections, including threaded, barbed, push-to-connect, dry disconnect, and others including those based on internationally-accepted specifications. Hose fittings are used in systems such as air compressors, automatic manufacturing operations, aircraft controls, and tire installation in industries including agriculture, mining, road construction, firefighting, and aviation.Dixon Valve & Coupling Company manufactures pipe and hose fittings and accessories. The company, founded in 1916, is headquartered in Chestertown, MD.