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50 Series
ARO 50 Series Pneumatic Valves offer manual, mechanical and pilot 3-way or 4-way valve configurations, with six actuator styles.

K Series
ARO K Series Pneumatic Valves feature 5-port, 4-way, 2- and 3-position directional control valves, with seven actuator styles.

H Series
ARO H Series Pneumatic Valves feature high-flow and fast response, 3-way and 4-way poppet valves and several actuator styles.

E Series
ARO E Series is available with 3-way or 4-way valve configurations and manual, mechanical, electric or pneumatic actuator styles.