This round HVAC duct damper provides a simple and effective way to control airflow throughout your ventilation system. Whether you’re fine-tuning comfort between rooms or limiting airflow to unused spaces, this damper allows for precise adjustment and dependable performance.
Made from durable galvanized steel, it’s designed to withstand everyday HVAC conditions while resisting corrosion over time. The adjustable locking arms make it easy to set airflow exactly where you want it and keep it there.
Available in 4”, 6”, 8”, 10”, and 12” sizes, this damper is suitable for a wide range of residential and commercial ductwork applications—making it a practical choice for contractors, installers, and DIY projects alike.
Backed by nearly a century of expertise and a commitment to excellence, this adjustable duct damper stands as a beacon of stability and reliability in the ever-evolving HVAC industry.