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

Made of PVC plastic to withstand acids, alkalies, salts, and other corrosive vapors and fumes.

In the event of a fire, these dampers automatically stop airflow through duct.

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