This kitchen water purifier was designed for small- and medium-sized families. It is connected directly to the municipal water supply and purifies the water through advanced reverse osmosis technology, thereby providing users with pure drinking water. Inspired by waterfalls, the water flows downward. Replacing the filter is easy and safe thanks to automatic alerts. The external motor design not only saves space under the kitchen sink, but it also allows consumers more placement options. The patented rotary replacement filter cartridge saves 80% of the energy of an ordinary filter cartridge.