The TOTO T20/T40 WASHLET+ and Auto Flush Ready S7A Elongated Bidet Toilet Seat with EWATER+ and Auto Open and Close Contemporary Lid is an electronic luxury seat that cleanses you with endless warm water, providing an exceptionally clean feeling. Instead of traditional toilet paper that can sometimes be rough and often ineffective, the WASHLET quickly provides comfortable warm water cleansing at the touch of a button. The WASHLET 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. No need to touch buttons or handles and never worry about someone forgetting to flush. WASHLET S7A is operated by a luxury style illuminated touch button remote with 4 user memory to save preferred settings. The WASHLET features 5 spray settings, auto open and close lid, auto flush compatibility (kit sold separately), heated seat, 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. The WASHLET reduces the need for toilet paper, saving trees and water used to manufacture each roll. Medical conditions, age, and debilitating illnesses can make using the bathroom without assistance almost impossible; but with a WASHLET, just the touch of a button can leave you feeling clean. Includes mounting and connection hardware. WASHLET+ Ready models are designed to work with TOTO T20/T40 WASHLET+ ready toilets to achieve a seamless look but are also compatible for install on standard elongated toilets.