... Air Cooler, Air Evaporator, Unit Cooler For Cold Storage Houses We supply air cooler, refrigeration evaporator,unit cooler ... as follows: Coils: Φ9.52 or Φ16 copper tube and aluminum, fin spacing 4.5mm(DL), 6mm(DD), ... Inner tube; Refrigerant can use R22, R134a and R404A.We also can supply according to the customs' drawing or ... } )(); Standard Air Cooler, Air Evaporator, Unit Cooler For Cold Storage Houses