The new toilet with a high-efficiency flush (Seat Included) is the culmination of enhanced design and functionality. Powerful and durable enough to work within both residential and commercial applications, the new drake exceeds all expectations. Featuring tornado flush, which utilizes a 360-degree cleaning power that reaches every part of the bowl. The enhanced design of the inner bowl reduces water flow resistance and turbulence, resulting in a quieter flush. The advanced dual flushing system allows you to proactively conserve water usage. This version of the drake includes cefiontect®, a layer of exceptionally smooth glaze that prevents particles from adhering to the ceramic. Cefiontect coupled with tornado flush helps reduce the frequency of toilet cleanings, minimizing the usage of water, harsh chemicals, and time required for cleaning. Designed with a total t40 washlet and auto-flush compatibility for when you are ready to upgrade to an electronic bidet seat with a hands-free flush system. Washlet+ toilets feature a channel on the bowl surface to help conceal your washlet+ supply line and power cord for seamless integration. This drake model comes ready for installation. The drake bowl and tank set include a softclose® seat, tank-to-bowl hardware, a tank-to-bowl gasket, wax ring, toilet mounting bolts, and toilet bolt caps. Additional items needed for installation and use must be purchased separately: water supply lines, optional washlet®, and bidet seat upgrade.