Designed for refrigerator boxes of 5-10 cubic feet. Provides both refrigeration and an area inside the fully bent evaporator plate for freezing. Vertical installation means no door is required. These calculations based on the box having good insulation, 3-4" Copper tubing from plate is about 9 feet terminating with Frigoboat quick connect/disconnect fittings. Extensions available in 3', 6', and 9' lengths, available separately for suction and liquid sides.