IDS Granular Activated Carbon GAC Water Filter Cartridge for RO Reverse Osmosis, 3 Count Effectively reduce unwanted tastes, odor and chlorine taste odor from your drinking water Absorbs natural organic, taste and odor Compounds Coconut shell granular activated carbon media Reduces sediment, dirt, turbidity and chlorine in drinking water, but not remove fluoride Fits Most Standard 10 Inch Ro Water Filter Housing / Bowl