TOTO's WASHLET™ SW auto flush First Edition captivates with its slim design and combines the hygiene and comfort functions that already exist in the WASHLET™ SW and RW. The new element in the Best Edition is the seamless seat of the SW and SW auto flush models, which is even easier to clean.It is equipped with the classic hygiene and comfort functions: the hot water shower, the heated seat, the odor absorbing deodorizer, the dryer as well as the EWATER+ function, which consists of cleaning the hand shower of the WASHLET™ and the toilet ceramics after use with electrolytically treated water