HVAC Duct Couplings | McMaster-Carr

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Adjustable-Angle Elbow

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304 Stainless Steel

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Interlocking Bracket

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Chemical Resistant

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DFARS Specialty Metals

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Polyethylene Foam

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1,185 Products

Duct and Fittings

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

Standard Duct and Fittings

Standard Duct and Fittings

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

Chemical-Resistant Duct and Fittings

Chemical-Resistant Duct and Fittings

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

Spiral Duct and Fittings

Spiral Duct and Fittings

A continuous seam reinforces duct against suction from dust collection systems

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

Other Products

Duct Airflow Dampers

Duct Airflow Dampers

Regulate airflow to sections of duct

Duct Turning Vanes

Duct Turning Vanes

Guide air smoothly around sharp bends in rectangular duct

Duct Floor Sweeps

Duct Floor Sweeps

Get dust and debris off your floor and into your collection system

Duct Downdraft Diverters

Duct Downdraft Diverters

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

Duct Damper Handles

Duct Damper Handles

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

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