Aqua 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.
IAPMO Product Listing (LADWP search listing)
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
Nelsen CorporationFamily-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.BARBERTON, OH
H2O Solutions, IncFounded in 1985, H2O Solutions, Inc. is a Pennsylvania-based company that designs, fabricates, installs, and services ultrapure-water treatment systems. From its Telford facility, it builds turnkey packaged systems and provides around-the-clock service for customers across several Mid-Atlantic states.TELFORD, PA
S & G Water Conditioning, IncSince 1959, S & G Water Conditioning has been a Warminster water-treatment company known for building much of its equipment in-house and tailoring systems to actual water conditions. It serves customers ranging from homeowners to public agencies, including on remediation projects tied to PA-DEP and US-EPA Superfund sites.WARMINSTER, PA