The Gravity Back Draft Damper is included in the base price of all of our whole house fans.
Industrial grade gravity fed back draft damper requires no power and is standard with all CentricAir whole house fans. The R5 insulated gravity damper is designed keep attic air from entering the living space when the whole house fan is not in use.
|No Framing Required||
Designed to fit within 16" or 24" on Center Joists
Due to product improvements and equipment upgrades, performance ratings and specifications are subject to change without notice.