Backdraft Damper Can-Fan 14 "

Backdraft Dampers prevent air from reverse flowing through the fan when powered off. It is recommended as the next line of defence against odor control. 

Features:

• Spring loaded for positive closure.
• The rigid design is constructed from galvanized steel for the collar and lightweight aluminum for the damper blades.
• Can be mounted horizontally or vertically for horizontal or vertical airflow.
  Available sizes 4", 6", 8", 10", 12", 14"