The Barker 16-Gallon 4-Wheel Pneumatic Tote-Along is designed to be a quiet, smooth rolling tote tank. This "tow-on-the-ground" tank is equipped with a quality, 3" conventional waste valve for ease of use and dependable performance. No longer do you have to lift your tote tank to empty it; simply open the 3" waste valve. The pneumatic wheels have axle bearings, a grease fitting, and 50 PSI 10" and 30 PSI 6" premium wheels. This durable Tote-Along is constructed from blow-molded polyethylene, zinc-plated steel, and aluminum. The front-mounted double wheel-swivel has been engineered for easy maneuvering and is mounted on a heavy-duty, extra-large mounting plate. The 4-Wheel Tote-Along comes completely assembled and includes:(2) 3" bayonet caps(1) 3/4" cap(1) 3" x 5' sewer hose(2) 3" bayonet hose adapters(2) stainless steel 3" hose clamps(1) heavy-duty tow handle(1) filler hose assembly(1) full tank indicatorDimensionsCapacity: 16 gallonsDimensions: 11.5"H x 17"W x 37"L Quality, heavy-duty, conventional 3 waste valve for easy & dependable emptying with no lifting needed 3 x 5 sewer hose with 3 bayonet hose adapters & stainless steel hose clamps for simple & sanitary emptying Filler hose assembly for easy filling with less mess | Barker 16-Gallon 4-Wheel Tote-Along