Aries (AF-10-2085) 10"x2.5" KDF-85 FilterAries Filter Works AF 10 2085 10" x 2. 5" KDF 85 Specialty Filter High performance redox filtration for iron and hydrogen sulfide removal in residential and light commercial applications KDF 85 Media 10" x 2. 5" Iron Reduction WHY IT WORKS Redox Filtration for Heavy Duty Water Challenges KDF 85 Redox Process Oxidation reduction media specifically formulated to remove hydrogen sulfide and reduce dissolved iron through electrochemical reactions Coconut