Plastic Vent Caps | McMaster-Carr

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116 Products

Fluid Handling

Breather Vents

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

84 products

Electrical

Battery Vent Caps

Flip open to check water levels and fill wet-cell batteries

1 product

Electrical Enclosure Vents

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

5 products

Electrical Enclosure Drain Vents

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

2 products

Electrical Enclosure Drains

Release moisture to keep components dry

2 products

Heating, Ventilation, and Air Conditioning

Duct Vent Caps

Reduce downdrafts and prevent obstructions from entering vents

6 products

Air Diverters

Guide air toward your workspace or deflect unwanted drafts

7 products

Containers, Storage, and Furniture

Syringe Caps

Cover syringe tips when not in use to protect them and prevent leaks

2 products