Chloramine Blaster Medical Grade Carbon RO Cartridge *** Always run 2 in series to provide sufficient contact time Fits most residential RO system (Standard 10 Inch Canisters) Perfect for water supplies disinfected with Chloramine. Regular carbon removes the chlorine component but leaves the ammonia behind exhausting the DI prematurely. This is a medical grade carbon has benefits that exceed most all other carbon specs. Chloramine Blaster Medical Grade Carbon -Pressure treated to change outer electron shell configuration make this a reactive carbon - Used in Dialysis where ammonia removal is essential