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Kohler Wellworth 1.28 GPF Tank$243.93
An American classic, this Wellworth high-efficiency toilet tank features innovative technology for a powerful, low-consumption flush. At 1.28 gallons per flush, this economical tank offers up to 16,500 gallons of water savings per year compared to a 3.5-gallon toilet. The streamlined design of this tank matches a coordinated bowl for a customized ensemble.