Sales are available for approved Mega Mass customers only.

Backdraft Damper

Keeps the air from an inline fan blowing in the right direction. Keep outside air out of your room or house.
Stays closed when fan is off preventing drafts and insects from entering through the duct
Available in multiple sizes to fit your specific needs.
The homeowner or renter looking for a way to avoid that stale smell in their humble abode will appreciate what exactly the backdraft damper does to keep their homes smelling and feeling fresh.