This PT Coupling Special Application Series malleable iron discharge and suction hose male shank coupler is suitable for connecting to discharge and suction hose fittings that have a nut. This fitting is threaded at one end and has a male shank at the other. It's made of plated ductile malleable iron for greater resistance to corrosion than non-plated iron. This discharge and suction hose fitting is suitable for joining hoses and pipes together in a variety of applications in the construction, mining, agriculture, manufacturing, automotive, and petroleum industries, among others.

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.