These replacement faucet water filters were developed by ClearDrop as a perfect alternative to the expensive brand name filters. Utilizing an advanced active coconut carbon block with a mineral based core, our filters effectively remove chlorine, particles, odors, and sediment; while retaining beneficial minerals, as a result you will enjoy fresh, great-tasting, and safe water directly from your faucet. ClearDrop filters have been tested and NSF & ISO certified for the highest standards of water filtration. ClearDrop is the economical choice for convenient safe water at the same standards as the original brand.