An American classic, this Wellworth high-efficiency toilet tank reduces water consumption without compromising on flushing power. A 1.28-gallon flush setting provides significant water savings of up to 16,500 gallons per year compared to a 3.5-gallon toilet, making this tank an economical addition to your house. 1.28 gallons per flush (gpf). Standard left-hand trip lever included. Supply line not included. Combines with the K-80020 bowl to create a complete K-76301 HighlineÂ¬Â¨âˆšÃœ concealed trapway toilet.