The TOTO(R) EP Wall-Hung Elongated Toilet with Contemporary S7A Bidet Seat and DuoFit(R) In-Wall 1.28 and 0.9 GPF Dual Auto Flush Tank System delivers unparalleled style and performance. The S550e WASHLET is fully automated, featuring 5 spray settings, auto open and close lid, heated seat, a nightlight, and instantaneous water heating. The WASHLET(R) S550e features TOTO's technologically advanced EWATER+(R) system that mists the wand and toilet bowl, reducing the need for harsh cleaning chemicals. The self-cleaning wand also uses the advanced EWATER+ to automatically clean before and after every use. PREMIST(R) wets the surface of the toilet bowl, aiding in the removal of waste and resulting in a better clean. The TOTO WASHLET(R) S550e is operated by a luxury style illuminated touch button remote with 4-user memory storage to save preferred settings. The DuoFit(R) tank provides a WaterSense(R) certified dual-flush option with TOTO's Dual-Max(R) flushing system. The EP bowl features TOTO's DYNAMAX TORNADO FLUSH(R), a hole-free rim design that generates a centrifugal, cyclonic rinsing action with the option of 0.9 or 1.28 gallons of water . Auto Open/ Close Lid and optional Auto Flush kit provide a hands-freeexperience with each use. No need to touch buttons or handles, and never worry about someone forgetting to flush. This wall hung toilet bowl also features TOTO's CEFIONTECT(R) glaze that minimizes waste from sticking to the ceramic. CEFIONTECT(R), EWATER+(R), and DYNAMAX TORNADO FLUSH(R) 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 DuoFit(R) harness allows you to select a mounting height of 15 to 19 inches. This provides the opportunity for you to establish a comfortable bowl height for a wide array of individuals. The in-wall unit can support up to 880 lbs when installed properly. The kit arrives ready to be installed within a 2" x 6" stud setting with a 2" x 6" polyethylene waste outlet. If you require installation within a 2" x 4" setting, you can purchase TOTO's 2" x 4" PVC outlet kit (THU343). Includes: EP WASHLET+ toilet bowl (CT428CFGT40), Contemporary S7A WASHLET+ (SW4736AT40), DuoFit in-wall auto flush tank with copper supply (WT173MA), silver push plate (YT930), WASHLET Connection Kit (THU794) and mounting hardware. Compatible with T40 WASHLET+ toilet bowl components only.