If you're looking for a quality refrigerator water filter that will leave your water and ice tasting great, you need the Aquamor 102618 EarthSmart L3 Series Replacement Refrigerator Water Filter. This filter is certified to reduce contaminants such as lead, cysts, chlorine, and more, so you can be confident you're drinking and using clean water. This refrigerator water filter contains a compressed carbon block which provides tremendous capacity to remove and/or reduce impurities and sediment that may be present in your drinking water. The carbon block has millions of active sites on its surface and within the structure which can absorb impurities like a sponge, and can adsorb and hold other types of impurities on its surface like a magnet. Aquamor's L3 Series filters are also designed to be easy to install and replace, so you can keep your fridge running smoothly.