8 Duct Size Duct Fittings | McMaster-Carr

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234 Products

Heating, Ventilation, and Air Conditioning

Duct Fittings

Connect lengths of duct

Duct

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

Duct Flanges

Mount on equipment to start a run of duct, or make a connection between two duct ends

Duct Clamps

Attach components such as sleeves, fans, and blowers to duct

Duct End Caps

Close off a length of duct

Duct Dampers

Regulate airflow through duct by adjusting from fully open to fully closed

Duct Blast Gates

Duct Blast Gates

Stop the flow of air and material through duct when closed

Duct Adjustment Sleeves

Duct Adjustment Sleeves

Slide on and secure with a duct clamp to extend a stretch of quick-disconnect duct

Duct Vent Caps

Reduce downdrafts and prevent obstructions from entering vents

Duct Intake Hoods

Duct Intake Hoods

Pull fumes out of work areas by linking to duct

Duct Ball Joints

Duct Ball Joints

Create adjustable-angle connections between duct components, such as joining duct to duct hose

Duct Damper Blades

Duct Damper Blades

Replace the blade on your duct damper or pair with hardware to create a new damper

Duct Spark Traps

Duct Spark Traps

Lower fire risk in duct systems by reducing the number of sparks

Duct Viewing Spools

Duct Viewing Spools

View material as it flows through your duct

Duct Downdraft Diverters

Duct Downdraft Diverters

An internal cone stops drafts in duct from extinguishing pilot lights

Diffuser Collars

Diffuser Collars

Connect diffusers to duct

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