4 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector

Description

🌟 Block the Draft, Keep the Comfort! Perfect for ACs, exhaust fans, and more in any setting. Designed to fit various duct types, ensuring optimal airflow. Crafted from high-quality materials for long-lasting performance. Prevent unwanted air re-circulation with ease. Simply push into your ventilation pipe for a snug fit. 4-inch size Galvanized steel One-way airflow The 4 Inch Draft Blocker Backdraft Damper is a robust solution for enhancing ventilation efficiency. Made from galvanized steel with aluminum flaps and stainless steel components, it prevents air re-circulation when fans are off. Ideal for a range of applications, this damper is easy to install and ensures a secure fit in various duct types, making it a must-have for both residential and commercial spaces.