Introducing a convenient bathtub feature: The downpipe is sealed or opened at the push of a button. The novel concept excels with its slim profile – it is comfortable to lean against when mounted at the front. The collar sits directly on the tub wall, with no unattractive openings seen with existing rotary knobs. Cleaning is easy due to the reduced surfaces and positive fit. The pushbutton in the center is framed by the overflow seam, while the simple design facilitates combinations with various faucets and interiors.