KOHLER Cimarron Dune 1.28-GPF Single-Flush High Efficiency Toilet Tank

This WaterSense®-labeled tank combines water efficiency with the versatile style of the Cimarron Collection. A 1.28 Gallon flush provides significant water savings of up to 16,500 gallons per year, compared to a 3.5 Gallon toilet, without sacrificing performance. This tank features innovative AquaPiston technology, a patented flush engine that delivers a fast, powerful, and virtually plug-free flush. Pair this tank with the K-4309 bowl for a complete toilet.