This Santevia Water Pitcher Filter fits within the Santevia Alkaline Water Pitcher. Using the same elements as nature’s filtration system, Santevia adds calcium, magnesium and other beneficial minerals, and has been independently tested to reduce chlorine taste and odour, heavy metals, industrial chemicals and agricultural contaminants. Providing you and your family with clean eco-friendly, cost effective and mineralized alkaline water. Be sure to replace your filter every two months.