DYNAMAX TORNADO FLUSH utilizes 360 degree cleaning power to reach every part of the bowl CEFIONTECT ceramic glaze minimizes waste from adhering to ceramic surfaces Bowl design reduces water flow resistance and turbulence, resulting in a quieter flush Completely skirted design for a sleek and understated look TOTO WASHLET+ upgrade compatibility: designed to work with a T40 WASHLET+ bidet seat for seamless integration