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 or HIP water filtration systems 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. The WR012 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 Candle style (domed on one end, threaded on the other), the WR012, fits the Doulton HCP and HIPDIY series water filter systems. Retail Price: $69.00. For the standard size housings, order the OBE (Open Both Ends), model.