ResinTech's AF-20-3203 filter cartridge contains ResinTech SBG2-OH, a hydroxide form anion resin that often has higher operating capacity and less objectionable odor than typically associated with type 1 anion resins. The AF-20-3203 filter can be used as the anion component in a variety of demineralization applications where a hydroxide form anion resin is coupled with a hydrogen form cation resin. The filter cartridge can be used at a maximum 95 ℉ (35 ℃) continuous temperature.