iO HVAC Controls EB-3020 Electronic 30 X 20 Bypass DamperiO HVAC Controls EB 3020 ACTUATORS ARE INSTALLED ON 2ND DIMENSION Electronic 30 x 20 Bypass Damper Height: 30 Width: 20 Total Size: 30 x 20 Actuator Placement on the dimension: 20 Additional Information Item NumberEB 3020 BrandiO HVAC Controls MotorizedYes ShapeRectangular Size (in)30 x 20 Spring ReturnNon Spring Return TypeBypass Dampers