Duct Collars | McMaster-Carr

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Duct Size

Material

304 Stainless Steel

ID

Shape

Component

OD

Flange Mount Type

Fitting Connection

Interlocking Bracket

Gender

Finish

Aluminum-Zinc Alloy Coated

Number of Mounting Holes

Gauge

Duct Profile

Export Control Classification Number (ECCN)

REACH

RoHS

DFARS Specialty Metals

Overall Depth

End Construction

Flange Thickness

Performance

Chemical Resistant

Corrosion Resistant

Flange Height

Duct Type

Mounting Hole Diameter

With Mounting Holes

Width

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266 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

Duct Flanges

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

Spiral Duct and Fittings

Spiral Duct and Fittings

A continuous 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

Other Products

Diffuser Collars

Diffuser Collars

Connect diffusers to duct

Chimney Storm Collars

Chimney Storm Collars

Pair with chimney roof flashing to prevent leaks where chimneys pass through roofs

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