Refrigerator Water Filter 1 (3pack) Efficient Filtration: Effectively reduce the smell of chlorine, remove harmful sediments, cysts lead, chlorine, iron and other heavy metals and other impurities. To create better drinking water. Remove over 99 percent of numerous potentially harmful contaminants, using a high grade carbon block. Great Tasting Water --- Works with Activated Carbon Help Remove 99.99% Odor,Chlorine,Dist,Rust,Turbidity,Heavy Metal and Harmful Sediments Brings You A Good Tasting Water and Healthier Life Delivers clean, clear water the looks and and tastes great. According to the characteristics of the product, replace the filter every six months or 200 gallons.