HVAC Duct | McMaster-Carr

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Duct Size

Shape

Adjustable-Angle Elbow

System of Measurement

ID

Material

Stainless Steel

OD

Component

Adjustment Sleeve

Downdraft Diverter

Duct with Access Panel

Fitting Connection

Interlocking Bracket

Push to Connect

Quick-Disconnect Clamp

Worm-Drive Clamp

Length

Finish

Aluminum Oxide Coated

Neoprene Coated

Silicone Coated

For Use With

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Gender

DFARS Specialty Metals

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Compliant with Exemptions

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Flexibility

Maximum Temperature

Less than 250° F

250° F to 499° F

500° F to 749° F

750° F to 999° F

1,000° F or greater

Duct Profile

End Construction

Color

Duct Type

Performance

Chemical Resistant

Corrosion Resistant

High Temperature

Quick Disconnect

Vibration Damping

Inside Surface Texture

Width

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2,654 Products

Duct and Fittings

Standard Duct and Fittings

Standard Duct and Fittings

Deliver air for a range of HVAC applications, including exhaust and dust collection

Quick-Disconnect Duct and Fittings

Quick-Disconnect Duct and Fittings

The fastest to disassemble for dust collection and other frequently cleaned systems

Rectangular Duct and Fittings

Rectangular Duct and Fittings

Maximize the space in close quarters, such as inside walls and ceilings

Duct Flanges

Mount to air handlers and HVAC equipment to start a run of duct

Spiral Duct and Fittings

Spiral Duct and Fittings

A continuous seam reinforces duct against suction from dust collection systems

Duct Vent Caps

Cover wall and roof vents to prevent cold air and debris from entering your system

Tight-Seal Spiral Duct and Fittings

Tight-Seal Spiral Duct and Fittings

Gasketed fittings prevent leaks and the seam reinforces duct against suction from dust collection systems

Oval Duct and Fittings

Oval Duct and Fittings

Half the height of rectangular duct to fit into the tightest spaces

Chemical-Resistant Duct and Fittings

Chemical-Resistant Duct and Fittings

Withstand corrosive gases, vapors, and fumes that would eat away at most metal duct

Fabric Duct and Fittings

Fabric Duct and Fittings

Evenly distribute air from fans and blowers through large spaces

Vibration-Damping Duct Connectors

Vibration-Damping Duct Connectors

Reduce shaking and noise from fans and blowers

Other Products

Duct Hose

Connect to blowers and vacuums to move air, fumes, dust, chips, and liquids

Duct Hose Fittings

Duct Hose Fittings

Join lengths of duct hose or connect to your exhaust system

Duct Blast Gates

Duct Blast Gates

Slide open and closed to control flow of air and material

Duct Airflow Dampers

Duct Airflow Dampers

Regulate airflow to sections of duct

Diffuser Collars

Diffuser Collars

Connect diffusers to duct

Duct Access Panels

Duct Access Panels

Create an entry point for cleaning and inspecting duct; also known as cleanouts

Duct Fans

Send airflow through or remove exhaust from duct

Diffuser Dampers

Diffuser Dampers

Regulate the airflow coming out of drop-ceiling diffusers

Duct Turning Vanes

Duct Turning Vanes

Guide air smoothly around sharp bends in rectangular duct

Duct Noise Reducers

Duct Noise Reducers

Muffle noise from high-velocity airflow and fans, blowers, and dust collectors

Duct Fire Dampers

Duct Fire Dampers

Automatically close at high temperatures to help prevent the spread of fire through duct

Smoke Pens

Produce smoke to observe airflow and detect leaks in HVAC systems; reusable, unlike smoke candles

Duct Damper Actuators

Duct Damper Actuators

Automatically adjust duct dampers to regulate airflow

Duct Downdraft Diverters

Duct Downdraft Diverters

Prevent downdrafts from blowing back into ductwork while allowing air and fumes to vent

Barometric Draft Dampers

Barometric Draft Dampers

Maintain consistent airflow in your furnace to improve its performance

Smoke Powder

No flame needed—release a burst of powder to detect airflow and leaks in HVAC systems

Duct Damper Handles

Duct Damper Handles

Replace an existing handle or pair with a blade to create your own damper

Smoke Pellets

Detect airflow and leaks in HVAC systems near server rooms and other areas with electronics

Smoke Candles

Light the wick for a short burst of smoke to observe airflow and detect leaks in HVAC systems

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)