The Sterasyl ceramic is fitted with both an activated carbon block and an ion exchange resin insert to produce the Ultracarb. Among other things, activated carbon is very effective at removing chlorine and organics from water. The ion exchange resin specifically removes lead from water. Ultracarb is designed to be used in pressure filters (on a mains water supply), not in gravity filters.
Ultracarb has all the benefits of Sterasyl removal of particles, pathogenic bacteria (E. Coli, Vibrio Cholera, Shigella, Salmonella Typhi, and Klebsiella Terrigena), cysts (Cryptosporidium and Giardia) with additional chlorine, organics (Insecticides, Herbicides, Phenols, Polyaromatic Hydrocarbons, and Trihalomethanes) and lead removal capabilities