Portable Exchange deionizers (PEDI) are part of a multiple-process treatment system that produces high-quality water required for specialized applications. Our systems are built to suit the size and water-quality specifications of your operation, whether your commercial water needs are large, small, or somewhere in between. Our proprietary Portable Exchange Deionization resins work to reduce both positively and negatively charged ions for a consistent supply of high-quality water. Using cation and anion exchange resins gives you the flexibility to access quality water where you need it, and the necessary regeneration that makes this portability possible is provided by your local Culligan Dealer as soon as resin is depleted – reducing on-site labor and regenerant chemical handling.