The ideal solution for those who want to fulfil the highest quality expectations. The PURITY Quell ST uses three different filter sizes to provide a reliable reduction in carbonate hardness and therefore in substances forming limescale, as well as unwanted taste and aroma elements and particles. As a result, it ensures optimum product quality and long operational life of machines. The filters in the PURITY Quell ST series are consistently the right decision if high flow rates are required.