Air Vents | McMaster-Carr

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1,459 Products

Fluid Handling

Air Vent Valves

Air Vent Valves

Eliminate air pockets from fluid lines to maintain consistent flow and prevent surges

Breather Vents

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

Mufflers

Reduce noise and filter exhaust fumes

Exhaust Filter/Mufflers

Exhaust Filter/Mufflers

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

Heating, Ventilation, and Air Conditioning

Louvers

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

Registers

Direct and control airflow coming out of HVAC systems

Return Grilles

Cover the opening where air is pulled into your HVAC system

Duct and Duct Fittings

Duct and Duct Fittings

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

Diffusers

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

Air Diverters

Guide air toward your workspace or deflect unwanted drafts

Enclosure Hoods

Enclosure Hoods

Keep enclosures watertight, even around intake and exhaust cutouts

Diffuser Collars

Diffuser Collars

Connect diffusers to duct

Chimney Pipe and Fittings

Chimney Pipe and Fittings

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

Exhaust Fans

Draw stagnant and humid air out of a room or area

Electrical

Electrical Enclosure Vents

Electrical Enclosure Vents

Attach to sealed enclosures so air can flow to equalize temperature and pressure

Electrical Enclosure Drain Vents

Electrical Enclosure Drain Vents

Prevent moisture from getting trapped inside enclosures while letting air flow through

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

Containers, Storage, and Furniture

Drum Vents

Prevent drum failure by releasing pressure and vacuum buildup

Facility and Grounds Maintenance

Air Admittance Valves

Air Admittance Valves

Allow air into drain, waste, and vent systems so you don't have to vent plumbing to the outdoors

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