About the Refrigeration System : The sea water flake ice machine uses a refrigeration system to cool the evaporator. Common refrigerants are environmental friendly gas, R404a, or R507a. or others depending on the design and intended use of the machine. Ice Machine Machine, Industrial Ice Cube Maker Machine, Ice Making Machine Countertop, Equipment Commercial,Bagged Ice Machines. Tube Ice: it’s cylinder type ice with hallow in the center or without hole solid type, commonly used in large-scale cooling applications like fisheries and concrete cooling. The product will supply to all over the world, such as Europe, America, Australia,Kyrgyzstan, Lyon,Surabaya, Comoros.With Water Filter: All OMT commercial cube ice machines have a water filter that feeds water into the machine to freeze into ice cubes.