The Barker 16 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 adapters, clamps, 5ft piece of 3 sewer hose, 3 and 3/4 caps, full tank indicator, solid plastic wheels, and heavy-duty tow handle. Delivered with handle removed and front wheels turned 90 degrees.