Culligan D-40A-D Under Sink Drinking Water Filter Cartridge - Replacement filter cartridge reduces lindane, atrazine, lead, mercury, greater than 99.95% cryptosporidium and giardia cysts, asbestos, chlorine, sediment, bad taste, and odor. 0.5 micron (nominal) filtration. CBC activated carbon block construction with lead-reduction media. Filter life up to 6 months or 600 gallon. Use with model - Size: 9.75" H x 2.5" W x 2.5" D, Life of Product: 6 Mo. or 600 Gal., Rating: 0.5 Microns, Pkg Qty: 1, Package Type: Box