Our plastic vent caps are engineered as essential components for chemical drums, industrial barrels, and agrochemical containers—designed to balance airtight protection with controlled pressure relief. Crafted from impact-resistant HDPE (high-density polyethylene), these caps resist corrosion, chemical degradation, and temperature fluctuations (-20°C to 60°C), making them ideal for harsh storage and logistics environments.

Featuring a built-in breathable membrane, the caps prevent dangerous pressure buildup inside sealed drums (a critical risk for volatile liquids like pesticides or solvents) while blocking moisture, dust, and contaminants. The screw-on design fits standard 2-inch drum bungs (compatible with 55-gallon/200L barrels), ensuring a secure, tool-free seal that stays intact during transit.

Available in black, blue, and white (custom colors on request), these vent caps meet UN packaging standards for hazardous materials—critical for compliance in global supply chains. Used widely in chemical manufacturing, agrochemical distribution, and industrial storage, they preserve product integrity, reduce spill risks, and enhance worker safety.

Whether you’re storing fertilizers, industrial cleaners, or herbicides, our plastic vent caps deliver reliable, cost-effective pressure management—perfect for small-scale operations and large distributors alike.