Sub-category two: Pure ultrafiltration equipment for water treatment - Under this category, you will find a system for water treatment by the famous Griferia Clever, a brand well known for its quality and customer loyalty. The Pure system has four cartridges installed for filtering water. Among the main advantages of Pure compared to other reverse osmosis systems, the quality of the filtered water stands out significantly, as it preserves all the important minerals that are needed by the body. Furthermore, It is extremely easy to install and does not need electricity. In fact, It has its own autonomy and a mechanism that luminously indicates the status of life of the cartridges.