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Vent Caps

Battery vent caps are an important part of your wet cell battery system— these vents serve several functions to help maintain the longevity of your battery. The vents are also a safety mechanism that can help stop internal explosions.

Our battery vent caps will make the task of watering your batteries easy. Many of our models offer a vent cap design that opens easily and is designed to allow for a quick and efficient water transfer to the battery. We carry an array of battery vent caps to fulfill your needs, like the water miser battery vent cap with its array of great features. The water miser vent cap makes it simple to check and maintain your battery, thanks to its ergonomic design.

Another function of battery vent caps is that they reduce the loss of electrolytes in the cells, and help to retain water while the battery is in use. These easy to use caps are cost effective and will extend the life of your battery, plus they help cut down on watering maintenance. Check out our battery vent caps today. We have standard models, flip tops, Econ-o-flip and push-in models ready to ship to you for all of your battery maintenance needs.

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  • Standard Quarter-Turn Vent Cap

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    Standard 1/4 turn vent cap fits most industrial and automotive type batteries. Available in yellow or white.

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  • Econ-O-Flip Vent Cap

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    Short: 17 plate batteries or larger Tall: 15 plate batteries or smaller

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  • Push-In Vent Cap

    Push-In Vent Cap

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    Push-In type flip top vent cap. Fits Douglas batteries or European industrial batteries without 1/4 turn vent cap openings (DIN).

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  • Water Miser Vent Cap

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    Features ease of inspection and watering Battery-top moisture reduction Electrolyte retention within cells Extended watering intervals Flame/spar...

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  • Flip Top Vent Cap (Short) - 17 plt +

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    Item Number:ACC-FTB Flip top vent caps will reduce your watering time!! This cap is for industrial batteries 17 plates or larger. It does not have ...

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  • Tall Flip Top Vent Cap

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    This cap is for industrial batteries 15 plates or smaller. It does not have a narrow opening so it is perfect for the Gun-X or XP!

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  • Surplus Flip Top Vent Cap

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    Vent Cap, Flip Top.

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  • Vent Cap - Flame Arrested Quarter Turn Cap
    Vent Cap - Flame Arrested Quarter Turn Cap

    Vent Cap - Flame Arrested Quarter Turn Cap

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    Quarter Turn - Flame Arrested Vent Cap Quickly remove cap to water or preform routine maintenance or water a battery. This cap features an integrat...

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