This PT Coupling CXA Long STA-LOK II series reducing coupler has an aluminum body, a buna-n (buna nitrile) gasket, and different size male and female cam and groove-style ends for changing the connection size of a cam-locking female coupler. The aluminum coupler body resists corrosion and abrasion, is light weight, and is suitable for use with water, hydraulic oil, coolants, gasoline, and petroleum products. Cam arms provide the mechanism by which the coupler locks into the adapter groove and the buna-n seal provides a leak-tight connection. This cam and groove adapter complies with Commercial Item Description A-A-59326D for quick disconnect fittings and is used in low-pressure applications such as fuel delivery, wine transfer, and grain movement.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.