Top-of-the-line filter cartridges that remove sediment for fresh-tasting water. Choose between coconut shell carbon block or pleated synthetic filtering media. Pleated construction of the synthetic filters results in excellent flow rate and also enables them to be cleaned and reused. In addition to removing sediment, carbon block filter cartridges remove up to 99% of chlorine. Filter cartridges are constructed of FDA grade components and materials. Designed for use with Watts filter housings.