The Toto® T40 Washlet®+ Carlyle® II 1G® Two-Piece Elongated 1 gpf Toilet and Contemporary Auto Flush Washlet®+ S550e Bidet Seat is designed to conceal the Washlet®+ power cord and water supply hose for a seamless installation. The Washlet®+ S550e features Toto® 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®+ S550e is fully automated, including an illuminated remote control with 5 spray settings, auto open and close lid, heated seat and instantaneous water heating. The Carlyle® II 1G® features Toto® Tornado Flush®, a hole-free rim design with dual-nozzles that creates a centrifugal washing action that assists in rinsing the bowl more efficiently. Toto® industry leading 1G® technology offers a powerful flush that flushes completely and fully with only one gallon of water. This version of the Toto® Carlyle® II 1G® includes CEFIONTECT®, a layer of ceramic glaze that minimizes waste from sticking to ceramic surfaces. This feature, coupled with the Washlet®+ Premist® and Tornado Flush®, assists to reduce the frequency of toilet cleanings, minimizing the usage of water, harsh chemicals and time required for cleaning. The new auto flush kit provides a hands-free automatic flush after every use. No need to touch buttons or handles and never worry about someone forgetting to flush. The Toto® Carlyle® II 1G® is designed in Toto® Universal Height, which allows for a more comfortable seat position across a wide range of users. This Washlet®+ includes the Washlet®+ with water supply adapter, Carlyle® II bowl and tank set with hardware and toilet bolt caps. Compatible with T40 Washlet®+ electronic bidet seat and toilet bowl components only. The Carlyle® II may be adapted for 10 in or 14 in rough-in with the purchase of a separately sold rough-in. Additional items needed for installation must be purchased separately: wax ring, toilet mounting bolts and toilet water supply lines.