Fuel Guard: AVD-3

Fuel Guard: AVD-3

H2Out AVD-3 installs on the fuel tank air vent line to protect engines and fuel tanks-up to 200 gallons-from water vapor. The vapor condenses into water in the tank, which creates sludge, and causes corrosion leading to engine failure.


  • Commercial Fishing Vessels
  • Power Boats
  • Sailboats
  • Trawlers

Technical Specifications

  • Protect fuel tanks to 200 gallons
  • 4" D x 5.5" L (34 oz), fits the standard 5/8" (inside diameter) vent line
  • Capture water vapor before it condenses in fuel tank
  • Prevents water damage of fuel tank and engine systems