Family-owned for more than 70 years, Nelsen Corporation has grown from its Medina, Ohio headquarters into a water-treatment manufacturer and distributor known for tailoring equipment to the needs of professional dealers. Its experienced sales team serves residential and commercial dealers across the United States and around the world, drawing on an average of more than 20 years in the water-treatment business.
IAPMO
Lancaster Water GroupFounded in Lancaster County in 1942, Lancaster Water Group makes American-crafted water treatment equipment for residential and commercial use. Four generations of the founding family continue to operate the company, which expanded from selling pumps into water treatment solutions in 1952 and maintains an on-site engineering team. Its Aqua-Technician seminars also provide technical training and certification for water-treatment professionals.LANCASTER, PA
Chandler Systems, IncSince Bill Chandler began making water-treatment products in Ashland in 1980, Chandler Systems has grown into an Ohio manufacturer shaped by in-house research and more than 50 water-treatment, motor-control, and electronic-system patents. Today, the Chandler family remains involved as the company develops equipment for residential and commercial water needs, including its connected DROP system.ASHLAND, OH
Ashland Water GroupFamily-owned Ashland Water Group brings more than 35 years of manufacturing experience to the water industry from its Ashland, Ohio, home. The company is known for solution-based products that help move water for customers ranging from residential users to municipal organizations, with its brands built around practical service and dependable support.ASHLAND, OH
Aqua Treatment Service, IncAqua Treatment Service, Inc. manufactures water-treatment equipment, including residential and commercial treatment systems and ultraviolet disinfection equipment. John and Donna Filson incorporated ATS in 1979 and acquired all its shares in 1985, establishing the family-owned company that continues to develop water-treatment products. The company says it has remained focused on water-treatment solutions for more than 40 years and identifies itself as a leading provider on the East Coast.MECHANICSBURG, PA