Softener cartridge - Granular filter - Ion exchanger Can be attached in the tank to the suction hose, of fresh water. You do not need to decalcify your device so often. For water treatment. System against limescale and algae for machines with suction pipe.With strong cation resin. Autonomy 18°Fr 22l Autonomy 27°Fr 16l Autonomy 45°Fr 9l Dimensions ø 40,5x80 mm - from 0°C to 40°C