This WASHLET™ toilet seat has been improved to make it more intuitive and comfortable, thanks to the wide surface area of the flat seat. A curved nozzle and compact internals form very thin (108mm) functional parts. The rear lid joint is metallic with a spin finish on the sides. The nozzle and bowl self-clean after each use with TOTO’s chemical-free sanitizing water system (using electrolyzed tap water). The pipes and cables are fully hidden within the rear of the appliance, ensuring that there are few surfaces where dirt can gather. This gives the installation a neater and cleaner overall appearance. Customers can choose between round and square models.