... ,9.52mm,10mm,etc fin:louver,flat,corrugated fin copper tube:smooth or bare tube copper evaporatordetailed info for this model :dimension: L235 * ... hydrophilic aluminum foil fin anti-frosting. evaporator features:1.material :copper , aluminum2.aluminum foil: hydrophilic or bare3.fin type: louver fin ... or corrugated fin or flat fin4.copper pipe: diameter 7mm,7.94mm,9mm,9.52mm,10mm, ...