The Toto T40 Washlet+ Aquia® IV two-piece elongated dual flush 1.28 and 0.9 GPF toilet and contemporary Washlet+ S7 Bidet Seat is designed to conceal the Washlet+ power cord and water supply hose for a seamless installation. The Washlet+ S7 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+ S7 is operated by a luxury-style illuminated touch button remote with 4-user memory storage 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. The minimalistic display provides a more subdued appearance to your Washlet+. Skirted design toilets also minimize the need to reach behind the bowl to clean the nooks and crannies of the exterior trapway. The Aquia® IV features Toto’s Dynamax Tornado Flush®, utilizing 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. Additional items needed for installation must be purchased separately: Wax ring, toilet mounting bolts, and toilet water supply lines. Compatible with T40 Washlet+ toilet bowl components only.