For Athena and Melody ionizers with 2 filters.
Used in Filter Position 2 (on the right side as you are facing the front of the ionizer), the UltraWater starts with the BioStone Plus compressed carbon block, we then turbocharge it with UltraWater Wrap technology, ensuring unmatched reduction.
Removes up to 99.9% of virtually all contaminants, including chloramine, pharma, heavy metals and the toughest to remove contaminants like chromium Vi and arsenic.
With added Scale Guard protection and it out performs any other filter we know of.
Clearly the best choice you can make in a filter. Period. (Rated for 1000 gal).