Culligan® Portable Exchange Deionizers (PEDI) are a part of a multiple process treatment system that produces high-purity water required for many specialized applications. Portable Exchange Deionizers from Culligan® is a safe, convenient and economical way to obtain consistent high-purity water from potable water sources. Our reliable PEDI systems consist of activated carbon and a selection of high quality ion exchange resins in portable exchange tanks. They connect directly to your tap water supply or for polishing to RO for high-purity water production. When the PEDI tanks are exhausted, a Culligan® service technician delivers, exchanges and maintains the equipment, thus providing continuous and uninterrupted supply of high-purity water to your operation. This system reduces capital investment, on-site labor, maintenance hassles or handling of hazardous regeneration chemicals and conserves you in water and energy resources.