Select this product only if you have a water ionizer already that you want to upgrade.
Upgrade your old water ionizer to a Delphi H2 Water Ionizer and 1) save 30% off your price, and 2) Double your "labor" warranty (to 10 years)!
The Delphi H2 is the only under-sink-water-ionizer we recommend, because it is built so strongly.
See the DELPHI H2 WATER IONIZER product page for more information about this great water ionizer.