Profile: Oxbow Activated Carbon LLC provides one of the most diverse lines of activated carbon solutions. We offer a wide variety of raw material types such as steam activated coconut shell, bituminous and sub-bituminous coal, as well as steam & chemically activated wood. We provide OxAnthra™ natural high quality filter media derived from coal as well as OxOs™ granular adsorbent media produced from hydroxyapatite mineral content. Filter anthracite is a coal based filter media with varied mesh sizes, which reduces pressure drop and allows for fewer backwashes.