10 inch Granular Activated Charbon filter cartridges. Removal of chlorine, pesticides, organic compounds, odors and taste. For complete listing of compounds removed refer please contact us for additional information. Inexpensive in cost and is a replacement filter for many different manufacturers of housings and systems. Is a replacement filter for many counter top and under counter filter systems. Effectively reduces many water contaminates at a reasonable cost. Granular carbon particles increase significantly the amount of surface area for absorption of contaminates. Can also be used as a polishing filter for reverse osmosis systems.