Keller Products

Plastic Design, Inc.

Keller Products was founded in 1990 as a supplier of engineered filtration products for the industrial market. The major initial product line was a series of cartridge filters utilizing the unique Keller plastic stacked disc washable filter element. To meet customer requirements, cartridge filters with replaceable filter elements and bag filters were added to the line. Keller industrial filters continue to enjoy a substantial market in filtration of cooling water, municipal water supplies, pond and well water.