HVAC Adapters | McMaster-Carr

Filter by

Duct Size

Shape

Adjustable-Angle Elbow

Material

304 Stainless Steel

ID

Fitting Connection

Interlocking Bracket

Quick-Disconnect Clamp

OD

Gauge

Gender

Finish

Duct Profile

End Construction

Duct Type

Performance

Chemical Resistant

Corrosion Resistant

Quick Disconnect

Vibration Damping

REACH

DFARS Specialty Metals

RoHS

Export Control Classification Number (ECCN)

Length

Flange Mount Type

Duct Adapter Type

Duct-to-Duct with Flange

Oval Duct to Standard Duct

Duct Construction

Number of Mounting Holes

Blade Material

304 Stainless Steel

Wye Angle

How can we improve?

1,784 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

Spiral Duct and Fittings

Spiral Duct and Fittings

A continuous seam reinforces duct against suction from dust collection systems

Duct Flanges

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

Quick-Disconnect Duct and Fittings

Quick-Disconnect Duct and Fittings

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

Chemical-Resistant Duct and Fittings

Chemical-Resistant Duct and Fittings

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

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

Rectangular Duct and Fittings

Rectangular Duct and Fittings

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

Oval Duct and Fittings

Oval Duct and Fittings

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

Vibration-Damping Duct Connectors

Vibration-Damping Duct Connectors

Reduce shaking and noise from fans and blowers

Other Products

Duct Airflow Dampers

Duct Airflow Dampers

Regulate airflow to sections of duct

Duct Blast Gates

Duct Blast Gates

Slide open and closed to control flow of air and material

Duct Downdraft Diverters

Duct Downdraft Diverters

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

Duct Turning Vanes

Duct Turning Vanes

Guide air smoothly around sharp bends in rectangular duct

Electrical Adapters

Electrical Adapters

Change electrical connectors to another type, size, or gender

Duct Damper Handles

Duct Damper Handles

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

Duct Floor Sweeps

Duct Floor Sweeps

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

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