iO HVAC Controls EB-1812 Electronic 18 X 12 Bypass DamperiO HVAC Controls EB 1812 ACTUATORS ARE INSTALLED ON 2ND DIMENSION Electronic 18 x 12 Bypass Damper Height: 18 Width: 12 Total Size: 18 x 12 Actuator Placement on the dimension: 12 Additional Information Item NumberEB 1812 BrandiO HVAC Controls MotorizedYes ShapeRectangular Size (in)18 x 12 Spring ReturnNon Spring Return TypeBypass Dampers