Simply stated, Raritan wanted to design a toilet that looked better, worked better, was easier to clean and maintain, and easier to install. In addition we wanted to create vacuum in the bowl rather than outside the bowl with large components that take up lots of room. We have improved performance in virtually every category over competitive products on the market today at a lower price point. Benefits: Vortex-Vac flush technology. Low Water Usage. Small footprint for compact installation. One piece vitreous china bowl. Angled back for contoured fit. Options: Variety of controls available. Available in white or bone. Available for 12 or 24V DC.