The Classic Athena UltraWater & Fluoride Filters-Set consists of: 1 UltraWater Filter for Jupiter Water Ionizers and 2 Fluoride Shield filters. This set enables the absolute filtration of Fluoride, chlorine, chloramines, pharmaceuticals, heavy metals, pesticides, and a plethora of other contaminants you don't want in your water, but allows the good, healthy minerals to pass through. It is proven that our bodies need water that has good minerals dissolved in it. Note: Fluoride removal is up to 99.99%. If you're looking for the absolute best filtration, this is it! Read more about UltraWater filtration.