Profile: Foster Manufacturing Co., Inc. produces detachable couplers, hose fittings, blow guns & related accessories for use with various gases and liquids. The common application for our products are for compressed air, hydraulic oil and water service. Our products are available in various materials, such as brass, steel, stainless steel and aluminum. We serve the oil & gas transmission, food & beverage, breathing air safety equipment, fluid power, light/heavy industrial and commercial markets.