Replaced regularly, PUR water filters reduce contaminants to provide clean, fresh tasting water and ice. Reduces: Cysts and Turbidity - linked to gastrointestinal problems. Lead. Chlorine taste and odor for better tasting water. Sediment for cleaner water. o-Dichlorobenzene - linked to risk of liver, kidney or circulatory problems Benzene linked to increased risk of cancer and anemia. Does not remove beneficial fluoride from drinking water. Fits all refrigerators with a.