Gas Can Modification New Gas Can FixHeavy-duty 8 wheels and 2 wheels transport your caddy through the toughest terrains with ease. Model 30 Gallon Fuel Caddy. Our caddy will always be by your side, no matter the conditions. Two Way Rotary Pump Bi-directional hand rotary pump allows you to dispense or siphon fuels with ease, making pumping and refilling efficient by reversing the cranking direction.