Cooltube Inc is a refrigeration evaporator coil Manufacturing company that makes the Cooltube refrigeration evaporator coil that is a medium temperature. Cooltube's patented design allows you to customize cooling for your needs. Cooltube is an innovative refrigeration method completely unlike the more traditional evaporator units. It contains a single metal (copper) evaporator, corrosive resistant durable ABS Plastic and includes directional airflow vents down its coil length. Easily retrofitted into existing refrigeration cases, Cooltube is an efficient and effective alternative to your current evaporator cooling unit.