FD flow air cooler with Freon flooring type air cooler&ceiling type air cooler widely applied to cold room,freezing room FD flow air cooler with FreonTraits ... :1. the whole evaporator is galvanized, no rust,with long life span;2.high ... 8mm 10mm 12mm It is siut for the refrigeration system with Freon, and also R404a, R134a and some other new ...