The Aquarius comes with a five year warranty and features our most powerful Ionizer with the patented  DARC system which represents the double action reverse cleaning system. This feature completely removes any scale from the electronic water cell. The MICOM control system optimizes the pH and -ORP of your water and helps keeps your ionizer in top working condition. A new indicator light alerts you if service is needed. Comes with a limited lifetime warranty and great customer support!