Culligan deionization products reduce total dissolved solids (TDS) from water by means of ion exchange resins.

Get quality water for your business. Through ion exchange, Deionization gets rid of unwanted minerals in your water supply. Choose the Deionization System that gives you the level of purity you need. Culligan offers strong-base, weak-base, or mixed bed systems. We’ll help you determine which will deliver the quality of water your business needs. Culligan also offers specially engineered deionization systems for use on your commercial/industrial needs.

This complex process results in high-purity water from a system that is easy to use and maintain. Deionization solutions can be customized to your exact business needs. Individual models are designed for easy operation and provide a cost-efficient supply of high-purity water to your business.


  • Simple System Integration
  • Global Product Platform
  • Flexible Configurations

Portable Exchange Deionizers

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.

Premier Series

Culligan Premier Deionizers are part of a multiple process treatment system that produces high quality water required for specialized applications. Premier deionizers use ion exchange to reduce unwanted contaminants. Choose from a flexible configuration of weak base or strong base resin tanks. You also have the option to automatically or manually control the regeneration process.

Culligan Premier Deionizers use fewer valves than competitors which helps improve reliability. A pumped regenerant system helps provide consistent regenerant usage.


From membrane reverse osmosis to deionization and commercial water softening, and from design to installation, Culligan's fast-to-market solutions feature revolutionary designs for commercial water treatment that are completely customizable to your business needs.


Utilize Culligan’s chemical water treatment programs to prevent corrosion, deposition, and microbiological growth in your Cooling and Heating Systems. Protect your cooling towers and chillers, steam boilers and steam lines, closed loops and equipment, all while minimizing water and energy consumption, facilities costs, and downtime.

Other Applications

Culligan offers a variety of solutions for any water conditioning challenge including waste water applications, acid cleaning, and water reclamation.