The TOTO® Drake® 1.28 GPF toilet tank with Washlet®+ auto flush compatibility is designed with compatible Drake® bowls. Compatible Drake® bowls feature TOTO's tornado Flush®, a rimless, hole-free design with dual nozzles that create a centrifugal washing action that assists in rinsing the bowl more efficiently. This version of the tank comes equipped with a left-hand chrome trip lever. This Drake® tank meets the standards for EPA WaterSense® and California’s CEC and CALGreen requirements. The Drake® tank includes a tank-to-bowl gasket, hardware, and toilet bolt caps. Additional items needed for installation and use must be purchased separately: Compatible Drake® toilet bowl, wax ring, mounting bolts, water supply lines, and toilet seat.