Battery Vent Caps

We make battery caps in both standard and custom sizes. To view our battery vent cap drawings, please choose one of the PDF links below.

Choose from our 3 models below according to which features you need.

Econ-O-Flip
This one is our basic vent cap and it has the lowest cost. Therefore, it does not have a flame arrestor or the Water Miser feature.

Cell-Gard
This is our deluxe model. Thus it costs more because it has a flame arrestor for added safety. With this in mind, you may want to read this article which shows why it’s a good thing to have a flame arrestor in your vent caps.

Water Miser
This is our top of the line model, and it has a safety flame arrestor. In addition, it has our Water Miser option so that you don’t need to add water to your battery as often.

For more info on our Water Miser vent caps, please view the Water Miser Battery Vent Cap Brochure.
For more info on the Econ-O-Flip vent caps, please view the Econ-O-Flip Battery Vent Cap Brochure.

If you do not know which vent cap you need, please measure your vent cap or the battery vent hole prior to ordering. Then compare those measurements with the ones shown in our drawings. Please read our battery vent cap FAQ page for more info.

To get a quote for any custom size, please contact us for more info.

Part #Imagepdf icon 
FLUX1000, FLUX2000Battery Recombination Caps

Battery Recombination Caps

  • Saves Time and Money
  • Reduces Emissions
  • Integrated Bi-Directional Valve
  • Acid-Proof Rubber Seal Washer (Included)
  • 1/4-Turn Bayonet Style Mount
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2000Water Miser Battery Vent Cap

Water-Miser Flip-Top Battery Vent Cap

  • Reduces watering intervals by up to 30%
  • Reduces evaporation & emissions
  • Reduces maintenance costs
  • Contains internal flame arrestor
  • Acid-proof rubber seal washer (included)
  • Flip-open top allows faster inspection & watering
  • Flip-top rotates 360° for easy positioning
  • No need to remove vent cap from battery
  • Virtually eliminates dropped, misplaced, or lost battery caps
  • 1/4-turn bayonet style mount

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1050#1050 Battery Vent Cap

Standard Battery Vent Cap

  • 1/4-turn bayonet style mount
  • Acid-proof rubber seal washer (included)
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1070#1070 Battery Vent Cap

Safety Battery Vent Cap

  • 1/4-turn bayonet style mount
  • Acid-proof rubber seal washer (included)
  • Contains internal flame arrestor
  • Tested by independent lab
  • (Select the PDF icon to view certificate)
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2000S#2000S Water Miser Battery Vent Cap

Water-Miser Stationary-Top Battery Vent Cap

  • Reduces watering intervals by up to 30%
  • Reduces evaporation & emissions
  • Reduces maintenance costs
  • Internal flame arrestor
  • Acid-proof rubber seal washer (included)
  • 1/4-turn bayonet style mount

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2025CELL-GARD 2025 Battery Vent Cap

Cell-Gard Flip-Top Battery Vent Cap

  • Flip-open top allows faster inspection & watering
  • Flip-top rotates 360° for easy positioning
  • No need to remove vent cap from battery
  • Virtually eliminates dropped, misplaced, or lost battery caps
  • Acid-proof rubber seal washer (included)
  • Internal flame arrestor
  • 1/4-turn bayonet style mount

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2050ECON-O-FLIP 2050 Battery Vent Cap

Standard Flip-Top Battery Vent Cap

  • Flip-open top allows faster inspection & watering
  • Flip-top rotates 360° for easy positioning
  • No need to remove vent cap from battery
  • Virtually eliminates dropped, misplaced, or lost battery caps
  • Acid-proof rubber seal washer (included)
  • 1/4-turn bayonet style mount
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2050SECON-O-FLIP 2050S Battery Vent Cap

Standard Stationary Top Battery Vent Cap

  • Acid-proof rubber seal washer (included)
  • 1/4-turn bayonet style mount
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2075ECON-O-FLIP 2075 Push-in Battery Vent Cap

Standard Flip-Top Push-in Battery Vent Cap

  • Flip-open top allows faster inspection & watering
  • Flip-top rotates 360° for easy positioning
  • No need to remove vent cap from battery
  • Virtually eliminates dropped, misplaced, or lost battery caps
  • Water level indicator (basket) for more accurate filling
  • Push-in style with rubber o-ring seal (included)
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2085Water Miser Push-in Battery Vent Cap

Water-Miser Flip-Top Push-in Battery Vent Cap

  • Reduces watering intervals by up to 30%
  • Reduces evaporation & emissions
  • Reduces battery maintenance cost
  • Internal flame arrestor
  • Flip-open top allows faster inspection & watering
  • Flip-top rotates 360° for easy positioning
  • No need to remove vent cap from battery
  • Virtually eliminates dropped, misplaced, or lost battery caps
  • Water level indicator (basket) for more accurate filling
  • Push-in style with rubber o-ring seal (included)
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2095
series
#2095 Flip-top Battery Vent Cap

2095 Series Battery Vent Caps

  • Available with flip-top or stationary-top
  • Available with or without Water-Miser option
  • Water level indicator feature for more accurate filling
  • Acid-proof rubber seal washer (included)
  • 1/4-turn bayonet style mount
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5000#5000 Push-in Battery Vent Cap

Flip-Top Battery Vent Cap

  • Water level indicator (basket) for more accurate filling
  • Flip-open top allows faster inspection & watering
  • Push-in style with rubber o-ring seal (included)
pdf iconPrice Inquiry
3-GVCA-10703-gang Battery Speed Vent Caps

3-Gang Battery Speed Vent Caps

  • Allows speedy removal of all battery caps simultaneously
  • Reduces battery maintenance cost
  • Internal flame arrestors
  • Acid-proof rubber seal washers (included)
  • Virtually eliminates dropped, misplaced, or lost battery caps
  • Patented design
  • 1/4-turn bayonet style mount
  • Heavy duty construction
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4-GVCA-10704-gang Battery Speed Vent Caps

4-Gang Battery Speed Vent Caps

  • Allows speedy removal of all battery caps simultaneously
  • Reduces battery maintenance cost
  • Internal flame arrestors
  • Acid-proof rubber seal washers (included)
  • Virtually eliminates dropped, misplaced, or lost battery caps
  • Patented design
  • 1/4-turn bayonet style mount
  • Heavy duty construction
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4000425, 4000550, 4000600Battery Water Level Indicator

Battery Water Level Indicator

  • Instantly know if your battery needs water
  • Dual spark arrestors
  • Easy 1/4-turn installation
  • 3 models available for different fill heights
  • Acid-proof rubber seal (included)
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1050WBattery Vent Cap Washer

Battery Vent Cap Washer

  • Our standard vent cap washer
  • Fits all battery vent caps listed above except for o-ring type
  • 1.380 O.D. x .946 I.D. x .064 thick
  • Other available thicknesses: .075 (#1050W.075) and .110 (#1050W2)
  • Acid-proof
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4D-8D-PIA4D-8D Battery Vent Cap Adapter

4D-8D Battery Vent Cap Adapter

  • Converts 3/4" diameter hole to accept 1/4-turn bayonet caps
  • Push-in style (no seal is required)
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4D-8D-SIA4D-8D Battery Vent Cap Adapter

4D-8D Battery Vent Cap Adapter

  • Converts 3/4" diameter threaded hole to accept 1/4-turn bayonet caps
  • Screw-in style with rubber seal (included)
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1050VCA#1050VCA Battery Vent Cap Adapter

Battery Vent Cap Adapter

  • Converts 1-3/8" diameter hole to accept 1/4-turn bayonet caps
  • Push-in style with rubber o-ring seal (included)

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M22x1.5M22x1.5 Battery Vent Cap Adapter

M22x1.5 Battery Vent Cap Adapter

  • Converts M22x1.5 threaded hole to accept 1/4-turn bayonet caps
  • Screw-in style with rubber o-ring seal (included)

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M27X3-SIAM27x3-SIA Battery Vent Cap Adapter

M27x3-SIA Battery Vent Cap Adapter

  • Converts M27x3 threaded hole to accept 1/4-turn bayonet caps
  • Screw-in style with rubber seal (included)

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