This model is only slightly larger than the smallest AQ3 Mini, but it has considerably higher performance and product quality. It is electronically controlled with RCS System (Remote Computer Supervision). AQ3 Midi produces AQ3 Drinking Water and AQ3 Pure Water, which is the best for washing, dishwashers, washing machines, etc. Daily output is about 300 liters. AQ3 Midi is suitable for apartments or small houses.