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.

Often used in tight spaces, such as in walls and ceilings, rectangular duct allows you to select larger sizes without increasing duct height.

For use with gas-fired equipment, such as boilers and furnaces, these vent pipes and fittings withstand temperatures up to 400° F. Also known as type B gas vents.