The TOTO Washlet+ Aquia® IV Arc two-piece Elongated Dual Flush 1.28 and 0.9 GPF Toilet and Contemporary Washlet+ S7A Bidet Seat is designed to conceal the Washlet+ power cord and water supply hose for a seamless installation. The Washlet+ S7A 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+ S7A 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, auto open and close lid, a heated seat, nightlight, a nightlight, 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. The curved tank design coupled with the skirted bowl creates a sophisticated look and minimizes 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 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. 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.