... High,medium,low temprature air cooler Unit cooler product features1. The housing is in plastic-sprayed coat ... clean oil dirt, moisture, oxide and other impurities inside. As such, no blocking trouble after filling refrigerant ... electro-thermal tube that's good-in insulation inside the coil, rational gap arrangement and power ability to ... )DL-67/330270010008806302350150770770/1″ Cold storage unit cooler