Ritchie Engineering Co., Inc. manufactures service tools for heating, ventilating and air conditioning professionals. The firm offers refrigerant recovery systems, vacuum pump systems, vacuum and charging hoses, charging systems, specialized and general use manifold gauges, electronic instruments, leak monitors and leak detectors, and system tools, as well as hose adapters, valves, and parts. It also provides automotive A/C tools, such as recovery and recharge products, coolant systems, vacuum pumps and gauges, leak detectors, electronic tools, manifolds and hoses, fittings and adapters, and system tools. The company was founded in 1946 and is headquartered in Bloomington, MN.