Heater Vents | McMaster-Carr

	Mounting Location Mounting Location

	For Duct Trade Size For Duct Trade Size

	Material Material

	Component Component

	Color Color

	White
	Clear
	Brown

	Face Plate Width Face Plate Width

	For Opening Height For Opening Height

	For Opening Width For Opening Width

	Minimum Width Minimum Width

	Shape Shape

	Cap
	Straight

	Face Plate Height Face Plate Height

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

DFARS Specialty Metals
COTS-Exempt

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

RoHS Compliant

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

REACH Compliant

	For Duct Width For Duct Width

	Finish Finish

Painted

Galvanized

	Diffuser Shape Diffuser Shape

Square

Round

	For Duct Height For Duct Height

	Cover Style Cover Style

	Airflow Direction Airflow Direction

	Blade Adjustability Blade Adjustability

Fixed

Movable

	Mount Style Mount Style

	Surface		Recess

	OD OD

161 Products

Diffusers, Registers, and Grilles

Dampers for Drop-Ceiling Diffusers

These dampers regulate airflow.

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 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.

Ceiling Diffusers

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

Ready-to-Connect Ceiling Diffusers

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

Air Diverters

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

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.

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.

Flue-Gas Exhausters

Wall-Vent Flue-Gas Exhausters

Often used for electric-to-gas conversions and renovations, these exhausters allow gas- or oil-fired equipment to be vented through a sidewall rather than a chimney.

Inline Flue-Gas Exhausters

Increase airflow through exhaust duct to improve furnace performance.