Carbon Block Technology, Inc., a wholly owned subsidiary of Multipure International, was founded to become the premier manufa ... cturer of high quality drinking water treatment devices and custom filters. The company produces tailored solutions that reduce the widest range of contaminants of health concern, and provide the people of the world with the best quality drinking water available at an affordable price. Today, Multipure is an industry leader and the world's largest manufacturer of compressed solid carbon block filters. read more