Specifically developed for the gastronomy, catering, and vending sectors, the Purity C Quell ST filter cartridges reduce the carbonate hardness in drinking water. This significantly decreases the risk of limescale deposits in the downstream end device. Furthermore, the filter medium binds metal ions such as lead or copper and reduces taste- and odor-disturbing substances, such as chlorine, both in the filtrate and in the blending water.