D-40A-D Features: -Carbon block drinking water replacement cartridge.-Level 4 premium filtration.-0.5 Micron carbon block cartridge.-Filter life: 600 Gallons or 6 months.-Reduces bad taste and odor, aesthetic chlorine taste and odor, sediment, lead, asbestos, cysts such as cryptosporidium and giardia, mercury, turbidity, atrazine, lindane and particulate class I. Includes: -Includes cartridge change reminder sticker. Dimensions: -Overall dimensions: 9.75" H x 2.5" W x 2.5" D.