Each "tow-on-the-ground" tank is equipped with a quality, 3-inch conventional waste valve for ease of use and dependable performance. No longer do you have to lift up your tote tank to empty it, simply open the 3" waste valve. Our pneumatic wheels have axle bearings, a grease fitting, 50 PSI 10" and 30 PSI 6" premium wheels. These durable Tote-Alongs are 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. All 4-Wheel Tote-Alongs come completely assembled and include: Two-Year Extended Warranty (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 indicator