Happywater AQU-SAR001 Water Ionizer Electronic Reference Device Constant pH/ORP function, verified by large LCD display Power Consumption: 80W (Max) PH Range: pH4.0 - pH11 adjustable, 4 Alkaline levels, 1 Purified level, 3 Acidic levels Filter Indicator: 10,000 Liters Filter: Activated Carbon Filter, 9 - 12 months a term, or changing by display indicator (Around 12000L)