The KOHLER touchless toilet is the no-touch flush for your home. Just hold your hand over the tank sensor to activate the flush. No handle to touch means fewer germs to pick up or leave behind. This Cimarron tank features innovative AquaPiston technology, a patented flush engine that delivers a fast, powerful, and virtually plug-free flush. Its 1.28-gallon flush provides significant water savings of up to 16,500 gallons per year, compared to 3.5-gallon toilets, without sacrificing performance. Pair this tank with the K-4309 bowl for a complete toilet.