Serving the Professional Water Treatment Dealer!

Nelsen Corporation is a wholesale manufacturer, OEM, and distributor of residential and commercial water treatment systems, components, and drinking water products to professional water treatment dealers. From the headquarters in Medina, Ohio, and additional distribution and manufacturing facilities in Arizona, Texas, Florida, and Wisconsin, Nelsen serves professional dealers in the United States and throughout the world with the best the industry has to offer from Clack, Pentair, VIQUA, ENPRESS and over 200 other vendors. Nelsen custom builds every water conditioner to your exact specifications, and we're able to deliver your orders quickly — many arrive within 1 - 2 days.