Draft Blocker 4 Inch - Backdraft Damper - Draft Stopper - Backflow Preventer - Vent Deflector (4'' Inch)

The Backdraft Damper is a must-have for any home or business looking to improve their ventilation system's efficiency and effectiveness.

With its automatic opening and closing mechanism, this damper ensures that air flows smoothly and consistently through your ducts, preventing backflow and improving indoor air quality.

Whether you're installing a new ventilation system or retrofitting an existing one, the Backdraft Damper is the perfect solution for any HVAC application.

Its durable design and easy installation make it a cost-effective and reliable choice for anyone looking to upgrade their ventilation system.

Don't settle for anything less, choose the Backdraft Damper today!