Handles located on all four sides for easy lifting, storing, and positioningRugged all-terrain wheels with ball bearings for smooth pullingIntegrated tow handle that connects to vehicle hitch for easy towingThe industry's lowest fill height of 6" cooperates with even the lowest RV waste valvesTitan Sewer Hose included and stays securely attached to tank with bayonet fittingCorner outlet for fast, thorough drainageUnique 90° elbow valve, on the 4-wheel models, to provide superior flow control while emptyingAutoStop™ level gauge prevents overfilling