AORITA Replacement Anti-Oxidant (Antioxidant) Ionizer Purifier Alkaline Drinking Water Pitcher/Jug Filter Cartridges (3) Effectively reduces chlorine taste, odors, heavy metals, and oxidation-reduction potential Produces small water molecules and alkaline water Water filters are tested and certified by the Water Quality Association (WQA) 1 water filter can filter 40 gallons (150 liters) of water Universal filter fits most filtration pitchers