The Culligan(TM) FM-15RA Faucet Mount Replacement Cartridge improves the taste and quality of drinking water right from your tap. The FM-15RA filter reduces bad taste and odor, aesthetic chlorine taste & odor, sediment, lead, cysts such as giardia and cryptosporidium, turbidity, atrazine, lindane and particulate class I. The filter cartridge has a life of up to 200 gallons or 2 months.