This is the finest ceramic water filter cartridge on the market. The Doulton Ultracarb Water Filter Element. Doulton`s customers include: UNICEF, Save The Children, Red Cross, etc. When used with the Doulton HCP/UC or HIP/UC housings this filter provides: 97% Chlorine reduction, 99.99% removal of Cryptosporidium, and Giardia. Greater than 98% Lead removal, and greatly improves taste, odor and clarity. Lasts for 600 gallons (about 6 months to a year) at a per gallon cost of less than ten cents. Ships FREE in continental U.S. This OBE (Open Both Ends) model, the WR003, fits standard size housings including our WC002 and WU003 water filtration systems. Our Doulton HCP/UC and HIP/UC series housings use the Candle style model. Retail Price: $69.00.