RainSoft

RainSoft has been providing whole-house water and air treatment systems since 1953. The company is headquartered in Roselle, IL, and has more than 300 dealerships in 20 countries. RainSoft products are designed and assembled in the USA and are tested and certified by third-party agencies. In 2019, Pentair acquired RainSoft.

RainSoft was founded in 1953 by John Grayson in the basement of his house in Bensenville, IL. In 1954, the first RainSoft cabinet softener, the Apollo, was developed. The company moved to its second facility in Elk Grove Village in 1957. In 1963, RainSoft moved into its fourth facility in a decade. In 1983, the industry's first computerized control valve, the RainSoft 'Q' Valve, was introduced. In 1984, the Classic Apollo Cabinet Water Softener was introduced. In 1985, the first RainSoft RO Drinking Water System was introduced. In 1993, RainSoft achieved record-breaking sales with 4,500 softeners and 1,500 RO units in one month. In 1995, the next generation RO was introduced. In 1998, a composite valve was introduced. In 2006, the EC4 Water Conditioning System and OxyTech Iron Removal Filter were introduced. In 2011, the Ultrefiner II RO was introduced. In 2016, RainSoft moved to Roselle, IL. In 2019, Pentair acquired RainSoft.

1. 1Home Water Treatment - Water Softeners & Air Treatmentrainsoft.com
2. 2Water Conditioning, Softeners, Air Purifiers | RainSoftrainsoft.com
3. 3Our Historyrainsoft.com
4. 4Home Water & Air Quality Products | RainSoftrainsoft.com