Tyent offers a lifetime warranty. “If you, the customer, experience any performance issues with our cutting-edge water ionizer systems, then we will fix or replace the unit. We will action repairs or replacements within one week, in the majority of cases. Any damaged unit will be fixed or replaced with a comparable unit at no cost to you (excluding shipping). The only eventuality not covered under our warranty is intentional or accidental breakage caused by dropping one of our units or damage arising from something of a similar nature. Feel free to use our units in any type of water, and to produce as much water as you wish. Our advanced cleaning system, filtration and power methods are the toughest and most advanced in the industry.”- Tyent USA