Press Fit Duct | McMaster-Carr

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	Duct Size Duct Size

2
3
3 1/2
4
4 1/2
5
5 1/2
6
7
8
9
10
11
12
13
14
15
16
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18
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52

	Shape Shape


Straight	90° Elbow

Adjustable- Angle Elbow	45° Elbow

Cap	Wye

Tee	60° Elbow

	System of Measurement System of Measurement

Inch

	ID ID

	OD OD

	Material Material

	Finish Finish

Galvanized

Painted

PVC Coated

	Component Component

	Connection Type Connection Type	Show

Press Fit

	Connection Type Connection Type	Hide

Quick-Disconnect Clamp

	Gender Gender

Male

Female

	Gauge Gauge

	End Construction End Construction

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

DFARS Specialty Metals
COTS-Exempt

	Flange Mount Type Flange Mount Type

Screw On

Weld On

	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

	Duct Construction Duct Construction

Closed

Open

	Number of Mounting Holes Number of Mounting Holes

	Overall Depth Overall Depth

	Gate Material Gate Material

	Flange Thickness Flange Thickness

	Slide Material Slide Material

Steel

Stainless Steel

Plastic

	For Duct Shape For Duct Shape

970 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.

Chemical-Resistant Duct and Fittings

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

Duct Flanges

Bolt flanges to equipment to start a run of duct.

Weld-On Duct Flanges

Weld flanges to equipment to start a run of duct.

Blast Gates

Control the flow of air and material through duct systems.

Self-Cleaning Blast Gates

Use in dust collection systems. The slide pushes through the top of the gate to clear debris.

Automatic Blast Gates

More convenient than other blast gates, these automatic gates open and close in sync with dust collectors, fume exhausters, and other machines.

Easy-Install Blast Gates

Often added to existing systems, these gates install without disassembling duct. Also known as half gates.

Automatic Airflow Dampers

Save energy and increase comfort by heating and cooling only the areas that need it.

Fire-Rated Airflow Dampers

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

Airflow Dampers

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

Furnace Draft Dampers

Also known as barometric dampers, these dampers improve furnace performance by automatically opening and closing to maintain consistent airflow despite changing environmental conditions.

Duct Noise Reducers

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

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.

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.