An ideal manual directional control valve for use with all pneumatic systems. Precision lapped rotor and seals offers high tolerance to dirt contamination. Offered as four-way, these valves may be used as two or three-way by plugging unused ports. (Note: "In" port must be used as pressure inlet port to assure efficient operation). Max supply pressure 220 psig. Operating pressure 150 psig. Body is made from aluminum die cast. Can be used with any non-flammable, non-toxic, non-corrosive gasses, except oxygen.