Vent Reducers | McMaster-Carr

	Duct Size Duct Size

	Shape Shape

	Straight
	Wye
	Tee

	Component Component

Reducer

Noise Reducer

	Material Material

	Finish Finish

Galvanized

PVC Coated

	ID ID

	OD OD

	Connection Type Connection Type

	Press Fit
	Interlocking Bracket
	Quick- Disconnect Clamp

	Gender Gender

Male

Female

	End Construction End Construction

Crimped

Plain

Rolled

	Gauge Gauge

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

DFARS Specialty Metals
COTS-Exempt

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

REACH Compliant

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

RoHS Compliant

	Overall Diameter Overall Diameter

	Length Length

110 Products

About Duct Connections

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.

Crush-Resistant Spiral Duct and Fittings

A spiral seam gives this duct greater strength and rigidity than standard duct.

Sure-Seal Spiral Duct and Fittings

Fittings have gaskets which create a tight seal—you don't need to seal joints with coating or tape.

Quick-Disconnect Duct and Fittings

Join duct and fittings with quick-release clamps for faster disassembly and cleanout than other duct systems.

Chemical-Resistant Duct and Fittings

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

Rectangular Duct and Fittings

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

Duct Noise Reducers

These noise reducers mount directly to spiral duct to decrease noise by as much as 50%.