This KOHLER® Kelston toilet tank features ContinuousClean, an automatic dispensing system that delivers a consistent amount of toilet bowl cleaner with every flush to keep your bowl cleaner between flushes. Simply place a cleaning tablet in the tank compartment, set the desired amount with the adjustment dial, and the system does all the work. This water-efficient 1.28 gpf toilet tank also utilizes innovative AquaPiston® technology, a patented flush engine that delivers a fast, powerful, and virtually plug-free flush. Pair this toilet tank with a Kelston toilet bowl for a beautiful, sleek two-piece toilet. Kohler®, 32818-0, Toilet Tank, Series: 32818, Kelston® Collection, 1.28 gpf Gallons per Flush, Left-hand Trip Lever Flush Handle, Bowl Mounting, 14-1/16 in Height, 8-7/8 in Width, 17-5/8 in Depth, White