High Efficient Performance 750W water distiller is 4L/1.06 Gallon volume. Distill 1L of water per hour, for a total of 6 Gallons of water per day. Rapid, clean, safe. TIPS: Note: In order not to affect your use and taste, we kindly suggest you replace the filtering carbon pack once a week and clean this machine after using twice Quality & Safety All the parts that contact with liquid are made of 304 stainless steel, which is durable and resists leakage, and won t wear out over time. Aluminum fan, Soft Catheter to prevent leakage, 4L BPA-Free Plastic Container with handle, all materials used are FOOD-GRADE Easy to Use The distilled water machine can be started with just one button, and the constant temperature control automatically closes to prevent burns. When the internal temperature reaches 320 , the product will automatically shut down, effectively preventing overheating.