Composed of high-grade premium activated carbon removes chlorine, foul taste, odor, and other organic contaminants with the use of premium food-grade calcium sulfite. It has Nano Silver Fiber (AG) that eliminates bacterial at 99.99% efficiency. The Bio ceramic balls, combined with natural healthy pH beads emit natural minerals that enrich calcium, magnesium, potassium, sodium and balance the pH level of the water, which makes for a crisp and refreshing taste.