Duct Vents | McMaster-Carr

	Mounting Location Mounting Location

	Material Material

	Component Component

	Shape Shape


Cap	Straight

Tee	45° Elbow

Adjustable- Angle Elbow	60° Elbow

	Trade Size Trade Size

	For Duct Trade Size For Duct Trade Size

	Color Color

	White		Black
	Clear		Gray

	For Duct Diameter For Duct Diameter

	OD OD

	ID ID

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Finish Finish

Painted

Galvanized

Powder Coated

	Width Width

	Length Length

	Gauge Gauge

	For Duct Shape For Duct Shape

Rectangular

Round

Square

	Face Plate Width Face Plate Width

	For Opening Width For Opening Width

	For Opening Height For Opening Height

	Face Plate Height Face Plate Height

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Vent Type Vent Type

Exhaust

Intake

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

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231 Products

Duct and Fittings

Dampers for Drop-Ceiling Diffusers

These dampers regulate airflow.

Ready-to-Connect Drop-Ceiling Diffusers

No additional fittings or collars needed.

Drop-Ceiling Diffusers

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

Snap-On Collars for Drop-Ceiling Diffusers

Connect diffusers to duct.

Ready-to-Connect Moisture-Resistant
Drop-Ceiling Diffusers

No additional fittings or collars needed.

Moisture-Resistant Drop-Ceiling Diffusers

A vapor barrier provides moisture protection as these diffusers spread hot or cold air around a room.

Ready-to-Connect Ceiling Diffusers

Diffusers come with a collar and damper already in place for simple installation.

Ceiling Diffusers

Evenly disperse airflow into a room to maintain a consistent temperature throughout the space.

Wall/Ceiling Registers

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

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.

Air Diverters

Guide air toward your workspace or deflect unwanted drafts with these diverters and covers.

Flat Roof Vent Caps

Sloped Roof Vent Caps

Wall 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.

Gas and Chimney Vents

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.

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.

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.