Thanks to the world-unique BWT filter technology, your local tap water is transformed into the finest Magnesium Mineralized Water + ZINC. Perfect combination of magnesium and zinc. Effective limescale protection for your appliances. Save on plastic bottles. The patented process reduces heavy metals like lead or copper, as well as odor- or taste-disturbing substances like chlorine, and lowers the lime content in the water. At the same time, the filtered water is enriched with the valuable mineral magnesium and the trace element zinc in ionic form. The combination of zinc and magnesium brings freshness to the tap water and energy to your daily life. By treating your locally available tap water, the environmentally harmful transport of water is eliminated, plastic waste can be avoided, costs can be reduced, and the CO2 footprint can be minimized. The filter cartridges for Magnesium Mineralized Water + ZINC also provide perfect limescale protection for household appliances like kettles and coffee machines, thereby increasing their lifespan.