The RainSoft Division of Aquion Partners generates revenues exceeding $220 million. Since 1953, RainSoft has provided water treatment for homes and businesses, employing purifying and softener systems. Products range from small, portable drinking-water purifiers designed for apartment dwellers, to massive, institutional treatment systems custom-built for food processing plants, hotels, office buildings, hospitals and factories. The company s product-line includes water conditioners, iron filters, whole-house carbon filters, drinking-water purifiers, ultraviolet systems, reverse osmosis systems and acid neutralizers. RainSoft s clients have included Allstate Insurance, Boise Cascade, Dow Chemical, Exxon Company, Ford Motor Company, Holiday Inns, Jewel Companies, Northrup Corporation, Ramada Inns, Thomas English Muffins, TWA and Underwriters Laboratories. The company ranks in Crains Chicago Business magazine as one of the top 500 privately-held companies in the Chicago area. The international company has nearly 300 dealers in the United States and 24 other countries. The RainSoft division of Aquion Partners is headquartered in Elk Grove Village, Ill.