Keystone's 3 Micron Taste/Odor Filter Cartridge is designed to remove unpleasant tastes and odors such as chlorine and/or sulfur (rotten egg) in your drinking water. The filter cartridge features:

• Activated carbon which is proven to remove bad tastes and odors by absorption. The filter is tightly wound and uses very fine activated carbon particles to maximize adsorption efficiency.
• 3 micron sediment removal.
• Fits standard Keystone and most competitive housings.
• Replaces any standard 20" filter cartridge