This battery vent cap is our basic model, and it serves two functions. First, they permit the checking and maintenance of water levels. Second, they provide a vent for the escape of gases that form when the battery is charging.
We also manufacture other vent cap models, and each one has unique features for added benefits. For more information on how to select the best vent cap model for your battery, please visit our FAQ page.
The minimum order is 3 battery caps. To buy, select a color in the drop-down box below. Then enter the quantity and select the Add to cart button. Then select the Checkout button that appears at the top left.