HVAC Fittings | McMaster-Carr

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Duct Size

Shape

Adjustable-Angle Elbow

Material

304 Stainless Steel

ID

Fitting Connection

Interlocking Bracket

Quick-Disconnect Clamp

Worm-Drive Clamp

Component

Adjustment Sleeve

Damper Hardware

Downdraft Diverter

Duct with Access Panel

OD

Gauge

Gender

Finish

End Construction

DFARS Specialty Metals

REACH

RoHS

Export Control Classification Number (ECCN)

Length

For Duct Shape

Flange Mount Type

Duct Adapter Type

Duct-to-Duct with Flange

Oval Duct to Standard Duct

Duct Construction

Gate Material

316 Stainless Steel

Width

Slide Material

Stainless Steel

Number of Mounting Holes

Color

How can we improve?

1,817 Products

Heating, Ventilation, and Air Conditioning

Duct and Duct Fittings

Duct and Duct Fittings

Circulate air through HVAC systems using round, rectangular, and fabric duct

Diffuser Collars

Diffuser Collars

Connect diffusers to duct

Barometric Draft Dampers

Barometric Draft Dampers

Maintain consistent airflow in your furnace to improve its performance

Diffuser Dampers

Diffuser Dampers

Regulate the airflow coming out of drop-ceiling diffusers

Measuring and Inspecting

Smoke Pens

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

Smoke Candles

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

Smoke Pellets

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

Smoke Powder

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

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