Aerovac Round Damper
Round volume control damper are designed to regulate air volume in circular ducts. These dampers are easily accessible with round ducts. The casing and blades are made of 1.0 mm (20 gauges) galvanized steel sheet. The blade is mounted on Nylon bushes and is manually operated with a quadrant set Gasket. Black foam gasket at edges to prevent air leakage in shut off position.