For Culligan #FM-15R faucet-mount water filter to provide cleaner, better tasting drinking and cooking water from faucet taps by reducing lindane and atrazine, cysts, chlorine taste and odor, bad tastes and odors and sediment and by removing more than 99.95% Cryptosporidium and Giardia cysts, 98.9% lead (0.5 micron rating). Up to 2 month/200 gal life. NSF tested and certified.