Ecological and organic limescale and corrosion protection thanks to the patented ion sieve technology using malic acid. No electricity, waste water or chemicals are required. Properties ranging from private households to massive housing estates can be flexibly and modularly modified with our cartridge. Alongside salt, malic acid is the only certified and effective method with over 90% limescale protection. Magnets or ultrasound realize a maximum of 30% limescale protection in accordance with DVGW w512. Malic acid is biodegradable and compostable. It is made from local fallen fruit.