5-Inch Stainless Steel Manual Volume Damper

Stainless Steel Body: The manual HVAC volume damper uses a 304 stainless steel body and blade that resists rust and heat in ventilation systems, preventing deformation during long-term use in ductwork.
Manual Airflow Control Valve: This stainless steel airflow control valve includes a handle with a protective cover and a rubber seal on the blade for a tight seal, reducing leaks and allowing for quiet operation in ductwork.
Wide Application: Suitable for HVAC systems, exhaust fans, hydroponics, and dryer vents, this duct damper with a handle allows you to adjust the airflow speed or completely close the duct for improved energy efficiency.
Air Balancing and Size: The adjustable blade angle regulates airflow and stops backflow to balance heating and cooling; approximately 125 mm/5 inches outer diameter for connections. 5-inch ducts.
Easy installation: The rubber rings at both ends of this backflow preventer improve the seal and simplify mounting in round ducts, helping to prevent accidental slippage when installing in HVAC or exhaust fan ducts.