Duct Vent Covers | McMaster-Carr

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153 Products

Duct and Fittings

Return Grilles

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

Drop-Ceiling Return Grilles with Filter Holder

Place these grilles in the grid of a drop ceiling.

Return Grilles with Filter Holder

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

Wall/Ceiling Registers

Direct air coming out of HVAC systems. Adjust the damper to control airflow.

Floor Registers

Install onto floor ducts to direct hot and cold air from your HVAC system.

Wall Vent Caps

Sloped Roof Vent Caps

Standard Duct and Fittings

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

Chemical-Resistant Duct and Fittings

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

Gas and Chimney Vents

Gas Chimney Vents and Fittings

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.

Exhaust Pipe Caps

Keep rain and debris out of vertical exhaust pipe with these caps that open with slight pressure from exhaust.

High-Temperature Chimney Vents and Fittings

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.

Chimney Vent Caps

Cover chimneys to reduce downdrafts and prevent obstructions from entering.

Spark-Protection Chimney Vent Caps

The expanded mesh on these vent caps provides spark protection.

Pipe Flashing Seals

Slide these seals over roof flashings for added protection and to create an extra-watertight seal without the need for caulk. They’re also known as storm or rain collars.