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.

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

Bolt flanges to equipment to start a run of duct.

Save energy and increase comfort by heating and cooling only the areas that need it.

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

More convenient than other blast gates, these automatic gates open and close in sync with dust collectors, fume exhausters, and other machines.

Use in dust collection systems. The slide pushes through the top of the gate to clear debris.

The panels open and close by turning the knobs.

Also known as cleanouts, panels cover cutouts in duct to provide access for inspection and cleaning.

Built to withstand temperatures up to 1000° F, these vent pipes and fittings are for use with boilers, furnaces, stoves, and other equipment that is fired by coal, gas, oil, propane, or wood.