Established over 70 years ago, this family-owned business has grown to become one of the world’s leading OEMs and distributors of residential and commercial water treatment systems and components, drinking water products, and well water systems. From its headquarters in Medina, Ohio, and additional distribution and manufacturing facilities in Arizona, Texas, and Florida, Nelsen serves professional dealers in the United States and worldwide.

Let’s face it - business can be tough. You know what’s best for your customer, business, and company’s future. Your equipment supplier plays an important role in the success of your company. With the best the industry offers from Clack, Pentair, Purolite, Enpress, and over 200 other vendors, Nelsen custom builds every water conditioner to your exact specifications – and we ship them the same day you place your order!

We are always in a continuous search to improve our product line, develop new products, and listen carefully to the needs of you, our customer. We are also ready to help. Nelsen Corporation has the best sales support team in the industry. Our sales team averages over 20 years of experience in the water treatment business, and collectively, over 450 years, has the knowledge and expertise to assist you in treating the most demanding of problem water. From both residential and commercial Points of Entry to Point-of-use equipment, components, and supplies, our team is ready with a solution to your customers’ problem water.

Nelsen - NRO-LC-LIT - Light Commercial RO System - Brochure