Pneumatic Damper Actuator, Actuator Connection Ball Joint Connector, Actuator Type Linear, Air Connection Gender Male, Air Connection Size 3/16 in, 1/4 in, Air Connection Type Barbed Hose, Application Dampers, Control Pressure - Maximum 29 psi, Control Pressure - Minimum 3 psi, Diaphragm Material Neoprene, Fire/Smoke Application UL Recognized Components for Fire/Smoke Applications, For Media Air, Force at 0 psi 19.8 lbf, Force at 20 psi 66 lbf, Includes Positioner Positioner Not Included