Doulton W9220402 Slim Line Replacement Ceramic Water FilterDoulton ceramic filters are manufactured to provide only the best tasting, highest quality water. With a microporous ceramic shell and a silver impregnated core to prevent bacterial growth, this filter removes contaminants like bacteria, cysts and sediment, leaving your water clean and refreshing. The ceramic filter can be scrubbed clean with a brush and water for an extended life. Ensure you have quality drinking water by ordering the Doulton