High Efficiency DC Compressor DC 12/24V For water dispensor, small refrigerator, small freezer, wine cellar and other refri High Efficiency DC CompressorDC 12/24VRefrigerants: R134a, suitable for water dispensor, small refrigerator, small freezer, wine cellar and other small refrigeration appliances used for car, ship and camping.The structure forms: hermetic crank connecting-rod reciprocating ...