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

【Effective Airflow Control】10 Inch Backdraft Damper is designed to permit airflow in one direction and prevent it from reversing, thus optimizing the efficiency of the ventilation system, helping you maintain the best air quality. For CoAiro-100, CoAiro-120, CoAiro-150, CoAiro-200 Whole house dehumidifiers.

【Superior Durability】 Backdraft Damper Crafted with a galvanized steel valve plate and cold-rolled steel housing, the backdraft damper boasts excellent corrosion resistance, heat resistance, and rust prevention, ensuring durability and long-lasting performance.

【Lightweight Valve Wings】Valve wings with lightweight springs can fold with minimal airflow. When the airflow is in the opposite direction, the valve wing closes automatically under the action of the spring, thus cutting off the airflow and enhancing reliability.

【Easy Installation】 During installation, the backdraft damper should be fully inserted into the ventilation duct and pushed to its maximum depth. When installed horizontally, the spring must be perpendicular to the ground to ensure the damper’s optimal opening and closing, Which also applies to vertical installations.

【Wide application】 Backdraft Damper can easily be inserted into flexible or non-flexible ventilation ducts. It is ideal for use with range hoods, bathroom exhaust fans, kitchen ventilation, and other home HVAC systems.