The Barker 42 Gallon 4-Wheeler Tote Along is available in 16, 25, 32, and 42 gallon sizes for compatibility with any size RV. Equipped with standard 3" valves to eliminate lifting to dump tanks. Constructed of blow-molded Polyethylene, zinc plated steel and aluminum. Double wheel, front swivel design for easy pulling and maneuvering. 4-Wheelers come complete with two bayonet hose ...