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Whole house fans, exhaust and ventilation fans and Indoor Air Quality

bath fan range hood exhaust dampers indoor air quality 4" Cape Backdraft Damper

The Cape Backdraft Damper opens and closes with minimal airflow in either direction. It does not rust or require any maintenance. Fits inside the duct-see here. 

Click here to see how it works!

Suggested applications:
Bathroom Exhaust
Clothes Dryer
Kitchen Range Hood

Volume discounts available, call 1-800-222-5932 for a quote. Allow one week to ship.

UPS ground shipping within Continental U.S. only, all others please call for quote.


Click here for product specifications

Installation video

Technical Data Sheet

Airflow and leakage test results

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$22.00 ea.

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