The TOTO Drake II 1G and Vespin II 1G, 1.0 GPF Toilet Tank with Right-Hand Trip Lever is designed for use with the Drake II or Vespin II 1G bowl. The Drake II and Vespin II tank includes a tank to bowl gasket, tank to bowl hardware, and toilet bolt caps. The tank features TOTO's industry leading 1G technology, offering a powerful flush that flushes completely and fully with only one gallon of water. This version of the tank comes equipped with a right-hand chrome trip lever. The Drake II and Vespin II meets the standards for EPA WaterSense, and California’s CEC and CALGreen requirements. Additional items needed for installation and use must be purchased separately: toilet bowl, wax ring, toilet mounting bolts, water supply lines, and toilet seat. The Drake II and Vespin II ST453U tank can be used on the following bowls: C453CUFG, C453CUF, C454CUFG, C454CUF, CT474CUF, and CT474CUFG.