HVAC Duct Fittings | McMaster-Carr

Filter by

Duct Size

Shape

Material

ID

Fitting Connection

Component

OD

Gauge

Finish

Gender

End Construction

RoHS

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

Length

For Duct Shape

Flange Mount Type

Duct Adapter Type

Duct Construction

Width

Gate Material

Number of Mounting Holes

Overall Depth

Color

Slide Material

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

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.)