EHM Filter Replacement Cartridge for Alkaline Mineral Water Ionizer Pitcher - Fits EHM ULTRA Pitchers EHM Makes great-tasting alkaline Ionized water. *Tourmaline stones to raise the pH BPA free..*Negative potential Balls to reduce the ORP value *Maifan stones to re-mineralize the water by adding iron, zinc, calcium and other beneficial minerals. High Anti-Oxidant for natural anti-aging properties at the same level or better than Vitamin C......*Far Infrared stones to energize the water Abundant minerals (Ca, Mg, Na, K and more) deposited into the water naturally. 2015 Voted NO#1 by Alkaline Water Machine Reviews http://alkalinewatermachinereviews.com/alkaline-water-pitcher/