KDF PROCESS MEDIA - Protect or Replace existing filters, founded in 1984, KDF Fluid Treatment, Inc. is a technological leader in the fluid treatment industry. Beginning with a U.S. patent for KDF redox alloy media in 1987, the company continues its technological innovation. KDF process media are used in pre-treatment, primary treatment, and wastewater applications. KDF media supplement or replace existing technologies to dramatically extend system life, lower total cost, and decrease maintenance. Patented KDF process media are 100 percent recyclable and contain no chemical additives.