Steel Vents | McMaster-Carr

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Polyester/Wool Fabric

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Adjustable-Angle Elbow

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Quick-Disconnect Clamp

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EAR99

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1,036 Products

Heating, Ventilation, and Air Conditioning

Louvers

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

132 products

Registers

Direct and control airflow coming out of HVAC systems

39 products

Return Grilles

Cover the opening where air is pulled into your HVAC system

31 products

Duct and Fittings

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

36 products

Diffusers

Evenly disperse airflow into a room to maintain a consistent temperature throughout

68 products

Chimney Pipe and Fittings

Vent hot air and fumes from boilers, furnaces, and stoves

30 products

Diffuser Dampers

Regulate the airflow coming out of drop-ceiling diffusers

10 products

Duct Blast Gates

Slide open and closed to control flow of air and material

88 products

Diffuser Collars

Connect diffusers to duct

4 products

Duct Airflow Dampers

Regulate airflow to sections of duct

71 products

Duct Downdraft Diverters

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

8 products

Duct Damper Handles

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

1 product

Duct Fire Dampers

Automatically close at high temperatures to help prevent the spread of fire through duct

13 products

Barometric Draft Dampers

Maintain consistent airflow in your furnace to improve its performance

6 products

Exhaust Fans

Draw stagnant and humid air out of a room or area

242 products

Flue-Gas Exhausters

Vent furnaces and other gas- or oil-fired equipment

8 products

Fluid Handling

Breather Vents

Maintain even pressure and vacuum as temperatures change by allowing airflow in tanks and enclosures

59 products

Pressure-Relief Valves

Protect equipment by opening at a set pressure and closing when the pressure drops; for repeated use

18 products

Mufflers

Reduce noise and filter exhaust fumes

99 products

Exhaust Filter/Mufflers

Purify exhaust and muffle noise from oil-free high-vacuum pumps

3 products

Pipe Vent Caps

Keep rain and debris out of vertical exhaust pipe

5 products

Containers, Storage, and Furniture

Drum Vents

Prevent drum failure by releasing pressure and vacuum buildup

1 product