Battery Vent Caps

We manufacture battery caps in both standard and custom sizes. Click on the PDF links below to view our current drawings (your browser must be set to allow pop-ups).

If you do not know which battery cap you need, please measure your existing battery cap or the battery vent opening before ordering, and compare the dimensions with the ones shown in the PDF drawings below. Please read our battery vent cap FAQ page for more information.

To receive a quote for any custom size,  click here to email us.

Click here to view the Water Miser battery vent cap brochure.
Click here to view the Econ-O-Flip battery vent cap brochure.

Part #Imagepdf icon 
2000Water Miser Battery Vent Cap

Water-Miser Flip-Top Battery Vent Cap


Purchase this product here
  • Reduces Watering Intervals by up to 30%
  • Reduces Evaporation & Emissions
  • Reduces Maintenance Costs
  • Internal Spark-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 / Lost Battery Caps
  • 1/4-Turn Bayonet Style Mount

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1050#1050 Battery Vent Cap

Standard Battery Vent Cap


Purchase this product here
  • 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


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  • 1/4-Turn Bayonet Style Mount
  • Acid-Proof Rubber Seal Washer (Included)
  • Contains Internal Flame-Spark Arrestor
  • Tested by Independent Lab
  • (Click the PDF Icon to View Certificate)
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2000S#2000S Water Miser Battery Vent Cap

Water-Miser Stationary-Top Battery Vent Cap


Purchase this product here
  • Reduces Watering Intervals by up to 30%
  • Reduces Evaporation & Emissions
  • Reduces Maintenance Costs
  • Internal Spark-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


Purchase this product here
  • 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 / Lost Battery Caps
  • Acid-Proof Rubber Seal Washer (Included)
  • Internal Spark-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


Purchase this product here
  • 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 / 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


Purchase this product here
  • 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


Purchase this product here
  • 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 / 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


Purchase this product here
  • Reduces Watering Intervals by up to 30%
  • Reduces Evaporation & Emissions
  • Reduces Battery Maintenance Cost
  • Internal Spark-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 / Lost Battery Caps
  • Water Level Indicator (Basket) for More Accurate Filling
  • Push-in Style with Rubber O-ring Seal (Included)
pdf iconBuy Now
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 Feature
  • Water Level Indicator Feature for More Accurate Filling
  • Acid-Proof Rubber Seal Washer (Included)
  • 1/4-Turn Bayonet Style Mount
pdf iconPrice Inquiry
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


Purchase this product here
  • Allows Speedy Removal of all Battery Caps Simultaneously
  • Reduces Battery Maintenance Cost
  • Internal Spark-Flame Arrestors
  • Acid-Proof Rubber Seal Washers (Included)
  • Virtually Eliminates Dropped / Misplaced / Lost Battery Caps
  • Patent Pending Design
  • 1/4-Turn Bayonet Style Mount
  • Heavy Duty Construction
Buy Now
4-GVCA-10704-gang Battery Speed Vent Caps

4-Gang Battery Speed Vent Caps


Purchase this product here
  • Allows Speedy Removal of All Battery Caps Simultaneously
  • Reduces Battery Maintenance Cost
  • Internal Spark-Flame Arrestors
  • Acid-Proof Rubber Seal Washers (Included)
  • Virtually Eliminates Dropped / Misplaced / Lost Battery Caps
  • Patent Pending 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


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  • Converts 3/4" Diameter Hole to Accept 1/4-turn Bayonet Caps
  • Push-in Style (No seal required)
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4D-8D-SIA4D-8D Battery Vent Cap Adapter

4D-8D Battery Vent Cap Adapter


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  • 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


Purchase this product here
  • 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


Purchase this product here
  • 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


Purchase this product here
  • Converts M27x3 Threaded Hole to Accept 1/4-turn Bayonet Caps
  • Screw-in Style with Rubber Seal (Included)

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