The HALO ION 2.0 Plus In-line Water Conditioner uses permanent magnetic fields to alter the molecular structure of calcium and magnesium ions, preventing limescale buildup in pipes and appliances while gradually dissolving existing scale without requiring chemicals, electricity, or drainage. The system installs directly into existing pipes and operates maintenance-free with no ongoing costs. It comes with a 25-year warranty (including 10 years parts and labor coverage) and is entirely made in the USA.