DuPont Water Solutions (DWS) is a division of DuPont de Nemours, Inc. (Wilmington, Delaware). A leader in sustainable water purification and separation technologies with over 40 years of desalination innovation. Manufactures the FilmTec reverse osmosis and nanofiltration membrane product line (the most widely used RO membrane technology globally), Inge ultrafiltration membranes, and ion exchange resins. Technologies purify more than 50 million gallons of water every minute worldwide, serving desalination, water reuse and recycling, and ground/surface water access applications.