From the Manufacturer:
The Enviro Products Alkaline Pitcher Filter Cartridge adds megative hydroxyl ions, which lowers the ORP (oxidative reduction potential)* giving the water molecules a negative charge. Each cartridge can alkalize and filter up to 300 liters of water.
About Puritan’s Pride
For more than 40 years, Puritan's Pride has helped families achieve a lifestyle of wellness. Our vitamins and supplements are made with care from the highest quality ingredients. They are tested or inspected as many as 15 times throughout the manufacturing process. That's why you can shop with confidence. We take pride in our products and helping customers feel their best.