Great for camping or emergencies, our Century Prep Septic System Contingency Toilet has a 5.2-gallon holding tank with a 3.2-gallon water tank capacity. This unit is completely self-contained with a built-in handle for easy transportation. It always flushes with clean water and provides a full-size seat and lid that are made with a sturdy, thick wall construction of high density polyethylene. The heavy duty corrosion-resistant side latches lock the tanks together. The detachable holding tank empties completely and the double-sealed drain valve protects against leakage and odors.