Abstract: A novel approach to refrigeration systems is a final condenser/cooler positioned prior to the metering or expansion device controlling the flow of refrigerant into the evaporator. The final condenser/cooler is positioned in the cold air stream flowing through the evaporator for cooling thereby. The final condenser/cooler expands part of the liquid refrigerant flowing from the condenser to cool the remaining liquid as it flows into the expansion or metering device and into the evaporator. In embodiments where there is no air circulated through the evaporator, a variation of the final condenser/cooler is used where the expanding refrigerant passing from the metering or expansion device to the evaporator passes through a passage in the main chamber of the final condenser/cooler to cool the liquid refrigerant flowing from the receiver.