Culligan Sales #FM-2RA Faucet MNT Refill The Culligan FM-2RA is the replacement faucet water filter cartridge for the Culligan FM-2A Faucet The Culligan FM-2RA reduces unpleasant odor&#44; chlorine taste and odor&#44; and sediment. The Culligan FM-2RA improves the taste of drinking water. The Culligan FM-2RA reduces 98.9% of lead. The Culligan FM-2RA filter reduces greater than 99.95% of Cryptosporidium and Giardia Cysts.