This WaterSense® -labeled tank combines water efficiency with the versatile style of the Cimarron collection. A 1.28 gal flush provides significant water savings of up to 16,500 gallons per year, compared to a 3.5 gal toilet, without sacrificing performance. This tank features innovative AquaPiston™ technology, a patented flush engine, that delivers a fast, powerful and plug-free flush. Pair this tank with the K-4829 or K-4347 bowl for a unified look. Kohler® Toilet Tank, Cimarron®, 1.28 gpf, Left Hand Lever Flush, 3 in Flush Valve, 12 in Rough-In, 14 in Height, 17-5/8 in Width, 8 in D, Vitreous China, Ice Gray™