RotopaX 3 Gallon Extension

Use this Extension to stack any Fuel Pack on top of the 3-gallon RotopaX, 3.5 FuelpaX, or 4.5 FuelpaX. Use the standard Extension if stacking the 3-gallon on top of a 1, 2, or 4-gallon fuel pack. 4" x 1" x 5 1/4"