Prevent backflow and ensure efficient airflow in your home HVAC system with our antidraft duct insert. Designed for range hoods, bathroom fans, and other applications, this insert features outer rubber gaskets that create a secure and airtight seal between the damper and ducts. It can be mounted horizontally or vertically to effectively block debris and maintain optimal airflow. Made of galvanized steel with spring-loaded aluminum damper blades that open with minimal airflow, ensuring smooth operation. Compatible with 6-inch duct openings, with a product length of 5.03 inches and a durable powder coat finish. Upgrade your ventilation system today for improved performance and energy efficiency!
