Established in 1953, RainSoft, a division of Aquion Water Treatment Products, provides water filtration and treatment solutions. Based in Elk Grove Village, Ill., it operates more than 150 dealerships in the United States and 20 other countries. The firm provides a number of products, such as water conditioners, iron filters, whole-house carbon filters, drinking-water purifiers, ultraviolet disinfection systems, reverse osmosis systems and acid neutralizers, to name a few. Some of the markets it serves include food-processing plants, hotels, office buildings, hospitals and factories.. Water conditioning & Whole-House Environmental Systems Premium Drinking Water systems Problem-solving filters for chlorine,iron,off-tastes & odors Whole-House Air Purification Strongest factory warranty in the industry Free Installation -0- Down Financing Salt Delivery Service