The TOTO T40 WASHLET+® Carlyle II 1G® Two-Piece Elongated 1.0 GPF Toilet and Contemporary Auto Flush 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 fully automated, including an illuminated remote control with 5 spray settings, heated seat, and instantaneous water heating. The Carlyle II 1G® features TOTO’s 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's 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’s 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+ toilet bowl components only. The Carlyle II may be adapted for 10" or 14" 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.