Roof Box Vents | McMaster-Carr

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Duct Size

Material

Shape

Adjustable-Angle Elbow

Component

Fitting Connection

Duct Profile

Gender

Base Width

Voltage

DFARS Specialty Metals

Exempt

RoHS

Compliant

Compliant with Exemptions

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

REACH

Duct Type

Export Control Classification Number (ECCN)

2B999

EAR99

Gauge

Length

For Duct Shape

Finish

Aluminum-Zinc Alloy Coated

End Construction

Performance

Mounting Location

Airflow @ Static Pressure

400 ft³/min @ 0 in. H₂O

500 ft³/min @ 0 in. H₂O

710 ft³/min @ 0 in. H₂O

800 ft³/min @ 0 in. H₂O

830 ft³/min @ 0 in. H₂O

1,050 ft³/min @ 0 in. H₂O

1,100 ft³/min @ 0 in. H₂O

1,250 ft³/min @ 0 in. H₂O

1,300 ft³/min @ 0 in. H₂O

1,500 ft³/min @ 0 in. H₂O

1,800 ft³/min @ 0 in. H₂O

1,950 ft³/min @ 0 in. H₂O

2,000 ft³/min @ 0 in. H₂O

2,100 ft³/min @ 0 in. H₂O

2,300 ft³/min @ 0 in. H₂O

2,400 ft³/min @ 0 in. H₂O

2,500 ft³/min @ 0 in. H₂O

2,900 ft³/min @ 0 in. H₂O

Chimney Pipe Size

Forward

How can we improve?

542 Products

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

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Regulate airflow to sections of duct

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Allow air to circulate through doors, walls, roofs, and enclosures

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Duct Damper Handles

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

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Duct Downdraft Diverters

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

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Slide open and closed to control flow of air and material

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Sealing

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Create watertight seals around vent pipes on roofs, even if they expand, contract, and vibrate

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