Reverse Osmosis Reverse Osmosis is designed for purification of tap water, brackish waterand bacteria-laden waste systems (with bio-reactor options). Reverse Osmosis concepts employed by Aquatronics are either spiral wound elements constructed from thin-film composite membranes or a revolutionary disc-tube thin-film membrane with polyethermide spacers. The specific application dictates the selection process. For more information about Aquatronics Industries products Contact Us