Calpak - Model M4-210s / M4-260s / M4-300s -Flat Plate Selective Collectors

The M4s collector has the same unique technical characteristics with the M4 collector. It only differs in the material used for the absorber where Mirosol selective surface has been chosen, instead of Tinox, in order to secure an optimum performance in sunny climates minimizing the possibility of overheating.