Our 801 series round butterfly air damper covers duct openings of your heating and air conditioning system. It is constructed of high-quality steel with a brown powder coat， removable control knob and plastic key to open and close the damper. It is designed to allow maximum air flow and circulation in your room.
Butterfly damper controls airflow into a room
Made of high quality steel
Brown powder coat finish
Removable knob control
Duct opening measurement
Compatible with model# E800-06
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