Check the listing for details. Battery Speed Vent Caps. Condition: New. Listed at 8.00 USD. BATTERY SPEED VENT CAPS DESIGNED & MANUFACTURED BY FLOW SYSTEMS STANDARD 3 CELL BATTERY SPEED VENTREPLACEMENT FOR: TROJAN, INTERSTATE, ROLLS SURRETTE, ENERGIZER, JOHNSTON CONTROLS, US BATTERY, EXIDE, DEKA, CROWN & OTHERS... Fits All 3 Cell Batteries - Designed to replace leaking speed vents from other manufactures. The Flow Systems Speed Vent or Gang Vent fits all 3 cell batteries that currently have a speed vent installed. Also replaces 3 cell batteries that have individual bayonet vent caps. 99% of all 3 cell batteries have cell spacing where the 3 individual cells are 2.68" apart. Please measure first. No Leaks - Flow Systems Speed Cap will not leak. Thicker sealing washers, tighter fitting and advanced design. Heavy Duty - Engineered to withstand even the harshest environments. Built to outlast your battery. Easy On / Easy Off - With one quick turn remove all three caps at once. No more fumbling around for individual vent caps Integrated Spark and Flame Arrestor - Only Flow Systems Speed Vents incorporate a spark and flame arrestor that prevents accidental battery explosions from arcing cables or other ignition sources in the vicinity of your battery. Less Watering - The included Spark and Flame arrestor acts as a filter for escaping gasses which deplete your battery of necessary water. With the Flow Systems Speed Vent Installed, batteries require less water and reduced overall maintenance. Manufactured by Flow Systems - One of only two manufactures who produce a battery speed vent. Flow Systems maintains thousands of Speed Vents in inventory and can deliver any volume within 24 hours of placing your order. Replaces leaking or damaged speed vents from other manufactures. Available in 4 Cell Version - In addition to the 3 cell version pictured in the listing, Flow Systems also offers the same Speed Vent in a 4 cell version.