This system has our largest but thinest eutectic tank and suits properly insulated refrigerator cabinets up to 300* litres or freezers up to 120* litres. (*With cabinet air circulation & extra power of condenser water cooling) Ideal for adding to a cabinet that has an existing boat motor driven system for additional, yet separate, refrigeration that can operate from any 12 / 24 volt DC battery and 110 / 240 volt AC power. Also suits narrower cabinets where space is an issue