1. Powerful 11-stage filtration system with 4 quick-change, integrated coarse filters 2. 75GPD RO membrane imported from Thailand (Membrane technology from America) 3. Certified to National Standards for purified drinking water 4. Mineral supplement with 5 functional cores Our filtered water meets national standards for mineral water and bottled water. The product has advanced RO technology to remove 99.99% of contaminants and a 9-stage filtration system with a flow rate of 15L/h. Efficient European standard pump. Alkaline core enriches water with hydrogen for added health benefits, all with a 36-month warranty.