This PT Coupling cam and groove type W adapter dust plug hose fitting is made of polypropylene, has a male plug connection, and is suitable for use with water and coolants. This fitting connects to a female cam and groove-style hose fitting to terminate the hose and provide protection against contaminates when not in use. It is made of glass-fiber reinforced polypropylene for strength, abrasion, corrosion and chemical resistance. This cam and groove adapter dust plug hose fitting complies with Commercial Item Description A-A-59326D for quick disconnect fittings and is suitable for applications such as water transport and wine transfer.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.PT Coupling manufactures pneumatic and hydraulic hose fittings for industrial and automotive applications. The company, founded in 1951 and headquartered in Enid, OK, meets International Organization for Standardization (ISO) standard 9001.