This H2 Series UltraWater Replacement Filter-Set [1 UltraWater & 2 Ultra-Hollow .01M Filters] is for the Athena H2, Vesta H2 and Melody H2 water ionizers. It includes three filters, and, as a set, it's rated for 1,000 gallons. [Each .01M Ultra-Hollow filter is rated for 500 gallons.]
The H2 Series UltraWater Replacement Filter-Set is our highest quality filter system, and will remove the important impurities necessary prior to ionizing, giving you crystal-clear and clean ionized water.
The first filter is a combined sediment and Ultra-Hollow .01M Filter to ensure no particles or microorganisms get into your second filter and water ionizer.
Read more information about UltraWater filters.

AlkaViva recommends you change UltraWater filters at least once yearly.
Filter Replacement Made Easy
- Shut off water flow.
- Turn on flow valve on front to release pressure.
- Remove old filter and disconnect electronic connector.
- Install new filter and reconnect electronic connector.
- If you have trouble inserting the new filter, lubricate O-rings with food-grade oil and that will assist in smooth insertion.
This is an old video, but is stilll applicable: