With the COMFORT-LEVEL, the water level can be adjusted at any time during the bath to suit personal preferences. If there is not enough water for comfortable immersion, the level can be increased continuously by up to 50 mm. A lever inconspicuously integrated into the overflow outlet allows for maximum water depth. By gently turning the lever, the water level can then quickly be reduced again while bathing, without having to open and close the drain. The water flows out through a covered, invisible outlet.