Designed for the heavier duty requirements of larger beverage machines. The Purity ST 600 Cartridge System provide 4 stage filtration to reduce temporary hardness and improve water taste. Specifically reduces the carbonate hardness in the water, preventing scale deposits. Unwanted smells and flavours, chlorine and heavy metals that impair the aroma and the attractiveness of food and drink are removed. Furthermore, the filter in the water safely retains any coarse and fine particles.