water dispenser use R134A Compressor Cooling,Cook and Cold type is avaiable Remarks of water cooler use R134A Compressor Cooling 1. Cook and Cold type is avaiable2. Adopt the material met food safety requirement, hygienic and safe; 3. Both hot and cold tanks are made of high quality SS304 stainless steel4. Regular hot tank size 1.2 liter, cold tank size 3.8 liter(hot and cold tank size can be ...