Butterfly Backdraft Dampers

Energy Efficient Butterfly Duct Dampers are installed in round ductwork to prevent backdraft damper protection from air leakage.  They are used as fan dampers, heating dampers, furnace dampers, air intake dampers, fresh air dampers, and kitchen fan dampers. 

** Sizes 18" and up are not kept in stock and are made per order. Please allow 5 days for completion. **