The WDR-53 round backdraft damper is designed to mount horizontally for airflow down or up; or vertical for horizontal airflow. This damper is opened by air pressure differential and closed by springs.

  • Galvanized steel frame
  • Aluminum blade
  • Pressure: Up to 3 in. wg
  • Velocity: Up to 2000 fpm
  • Temperature: Up to 180°F