Pneumatic Actuator Operating PSI Range 8 to 13 Max Air Pressure 30 psi Stroke 2 3/8 in Nominal Spring Range 8 to 13 psi Mounting Type Fixed Net Force Exerted @ 0 PSI 3-8 psi Length 6 in Width 4 in Height 3 15/16 in Provides Modulating or Two Position Control For Use With Dampers or Air Valves Includes Bracket Clevis