Thetford Porta Potti 550P Marine Sanitation Device: * Battery-powered flush * Sleek, modern and homelike design * Comfortable seat height * Increased bowl size * Hidden controls * User-friendly flush lever * Level indicators for fresh and waste water tanks * Integrated toilet paper holder * Improved water tank carrying handle * Optional hold-down plate * Fresh water tank: 4.0 gal * Waste water tank: 5.5 gal * Average flushes: 56 * Material: plastic * Origin: imported