The TOTO T20/T40 WASHLET plus Auto Flush Ready S7 Elongated Bidet Toilet Seat with EWATER plus and Auto Open and Close Classic 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. When paired with a compatible TOTO WASHLET plus toilet, the T20/T40 WASHLET plus is designed to conceal the WASHLET bidet seat