Magnetic Filter part Has many strong magnets to magnetize water by helix state. The part Forces +/- hydronium temporarily into cathode to exchange water molecule and mineral hydronium,makes Ca2+/Mg2+to unite electron,and has no cation function temporarily. Hence,even heating, it doesn't unite hydronium---for example So42+,The part makes water not to scale any more. Magnetic filter part makes water soft, and scale will be never produced in water pipe.