No need for clamps or connectors—duct and fittings have a male end that is slightly smaller than its female end for simple assembly.

A spiral seam gives this duct greater strength and rigidity than standard duct.

Fittings have gaskets which create a tight seal—you don't need to seal joints with coating or tape.

Evenly distribute air from fans and blowers throughout large spaces.

These dampers regulate airflow.

Regulate airflow by adjusting dampers from fully open to fully closed.

Also known as barometric dampers, these dampers improve furnace performance by automatically opening and closing to maintain consistent airflow despite changing environmental conditions.