Profile: Interface Devices, Inc. is a designer and manufacturer of air driven fluid pumps, hydraulic valves and custom engineered fluid power products. We specializes in providing air driven pumps and engineered integrated pump systems. Our principle products include the E, H and P series air driven liquid pumps with integrated pneumatic and hydraulic circuitry. We offer air driven air & aas boosters, air amplifiers for a variety of industrial applications. Our products include oil-to-oil boosters and zero leak directional control valves.