AntiChlor 427 is a modified, odorless liquid sodium bisulfite formulation used to remove free and combined chlorine from reverse osmosis (RO) feedwaters. This food-grade chemical is stabilized to prevent off-gassing, making it ideal for indoor installations. AntiChlor 427 liquid is also less prone to air oxidation than equivalent solutions and has a longer shelf life when compared to straight sodium bisulfate solutions.
AntiChlor 427 removes chlorine more effectively than activated carbon and eliminates many of the issues associated with carbon beds, including bacterial growth and carbon fines in downstream feedwaters.