Nominal 0.5 micron Carbon Briquette Multimedia Water Filter Cartridge Dimensions are 2.88" x 9.75" Reduces lead through 2000 gallons, reduces VOCs, and reduces MTBE. Premium high capacity chlorine taste & odor reduction through more than 20,000 gallons. Enhanced dirt holding capacity. Designed to reduce chlorine taste and odor, dissolved and particulate lead, cysts, MTBE and certain volatile organic chemicals (VOCs). Manufactured using a patented process, and combine powdered activated carbon (PAC) with a specially designed adsorbent medium for lead and mercury reduction. Protected by Endurawrapâ, a uniquely formulated polyolefin bilaminate prefilter, designed to significantly increase the useful life of the cartridge by trapping sediment that typically plugs carbon block cartridges. Unique structure of the carbon block enables it to reduce Giardia, Cryptosporidium, Entamoeba and Toxoplasma cysts and fine sediment particles down to 0.5 microns. Both the CBR2-10 and CBR2-10R filters are effective at reducing levels of chlorine taste & odor, MTBE and VOCs. *CBR2-10R has a built-in flow restrictor (0.6 gpm) to allow for maximum contact time. Since the flow rate is restricted, this filter is better for under sink drinking water systems and not whole house systems.