Effective Airflow Control: ATOM NEXUS backdraft damper is designed to permit airflow in one direction and prevent it from reversing, thus optimizing the efficiency of the ventilation system, and helping you maintain the best air quality.
Superior Durability: Crafted with high-quality galvanized steel, the backdraft damper boasts excellent corrosion resistance, heat resistance, and rust prevention, ensures durability and long-lasting performance.
Lightweight Blade: Aluminum butterfly damper blades with lightweight springs can fold with minimal airflow. The backflow flap closes automatically at low air volumes, enhancing its reliability.
Easy Installation: Simply insert the backdraft damper into the air duct for effortless installation. It prevents backflow and debris whether mounted horizontally or vertically. For optimal operation, position the spring horizontally when installed.
Wide application: 1.Fits for 4-inch duct openings. Product Length: 5.03 inches(Fits for 6-inch duct openings. Product Length: 5.11 inches AND Fits for 8-inch duct openings. Product Length: 7.08 inches )This draft blocker can easily be inserted into either flexible or non-flexible ventilation ducts. Ideal for range hoods, bathroom exhaust fans, kitchen ventilation, as well as other home HVAC systems.