The TOTO Aquia® Dual-Flush Elongated Two-Piece Toilet and contemporary Washlet® S500e bidet seat are designed to conceal the Washlet® power cord and water supply hose for a seamless installation. The Washlet® S500e features TOTO's technologically advanced Ewater+® system that mists the wand and toilet bowl, reducing the need for harsh cleaning chemicals. Premist® wets the surface of the toilet bowl, aiding in the removal of waste and resulting in a better clean. The TOTO Washlet® S500e is operated by a luxury-style illuminated touchpad remote with 2 user memory to save preferred settings. The Washlet® features 5 spray settings, a heated seat, and instantaneous water heating. The newly redesigned lid style resides flush with the toilet bowl, providing a streamlined look and giving the impression of an integrated system. This minimalistic display provides a more subdued appearance to your Washlet®. Skirted design toilets minimize the need to reach behind the bowl to clean in between the nooks and crannies of the exterior trapway. The Universal Height design allows for a more comfortable seat position across a wide range of users. The Aquia® IV features TOTOs Dynamax Tornado Flush®, utilizing a 360-degree cleaning power to reach every part of the bowl. This version of the Aquia® IV includes CEFIONTECT®, a layer of ceramic glaze that minimizes waste from sticking to ceramic surfaces. CEFIONTECT®, Ewater+®, and Dynamax Tornado Flush® create a synergy that optimizes flush performance to reduce the frequency of toilet cleanings, minimizing the usage of water, harsh chemicals, and time required for cleaning. The enhanced design of the Aquia® IV inner bowl reduces water flow resistance and turbulence, resulting in a quieter flush. The chrome center-mounted push button that sits atop the tank allows you to proactively conserve water by choosing between a 0.9 GPF rinse or 1.28 GPF for tougher jobs. The Aquia® IV comes ready for installation into a 12" rough-in, but may be adapted for a 10" or 14" rough-in with the purchase of a separately sold adapter. Additional items needed for installation must be purchased separately: wax ring, toilet mounting bolts, and toilet water supply lines.