Automatic Water Distillation System, 7 Gallons per day with 6 Gallon Reserve ADVANCED TECHNOLOGY -High distilling out-put, low electricity consumption. Standard -120 Volt. STAINLESS STEEL CONSTRUCTION. 18-8 Stainless Steel, strong, durable and attractive. HIGH CAPACITY - Makes 8 gallons per day. Holds 6 gallons in reserve. AUTOMATIC SYSTEM- Automatically turns on as storage tank gets low. Automatically fills boiling tank, heats and distills for continuous operation. Automatically turns off when storage tank is full. Easy installation, just tap into any water supply line.