Cover the opening where air is pulled into your HVAC system.

Add a filter to these grilles for protection against dust and debris entering your HVAC system.

Place these diffusers in the grid of a drop ceiling to distribute air evenly throughout your space.

No additional fittings or collars needed.

Connect diffusers to duct.

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

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

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

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.

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.