RARITAN ENGINEERING CO 22 oz. KO Kills Odor Holding Tank Deodorant 1PKO22 22 oz. KO Kills Odor Holding Tank Deodorant Organic formula to preserve and protect the marine environment Bioactive formula breaks down and neutralizes odor-causing waste materials instantly Digests liquids, solid waste and paper A small amount of KO can easily keep a boat odor-free between pumpouts