The BWT Bestmax PREMIUM is an innovative filter system for optimizing water, especially for all hot beverages such as coffee, espresso, and tea. The modular multi-stage filter uses patented BWT Magnesium Technology, which also mineralises the filtrate with magnesium. This flavor carrier guarantees high sensory quality in both the water and the products made from it. The blend partial flow (0–3) is set on the filter head depending on the water hardness and requirement. Check valves in the filter head prevent backflow and uncontrolled water discharge. BWT Bestmax PREMIUM food-safe filter systems are pressure-resistant and can be used worldwide in any drinking water system.