The 1/4 vent tube allows air to flow in to the bottom of the container releasing the internal pressure resulting in a smooth and quick pour.
VP Racing Fuels 1 5/16" Power Spout Fuel Transfer Hose VP 5 Gallon cans #153
VP Racing Fuels 6635 Fix-It Fuel for 2-Cycle and 4-Cycle Engines, 8 Pack
VP Racing Fuels 6635 Fix-It Fuel for 2-Cycle and 4-Cycle Engines, 3 Pack
VP Racing Fuels 6635 Fix-It Fuel for 2-Cycle and 4-Cycle Engines
VP Racing Fuels M10035 Power Wash Liquid R/C Formula 32oz Spray Bottle
VP Racing Fuels M10025 Power Wash Liquid Moto 32 oz Spray Bottle
