Purolite Inert spacer polymers are used to create a barrier in an ion exchange bed and keep the ion exchange beads exactly where they are supposed to be. They can guard the bottom collectors, the top distributors and create separation between cation and anion layers in a mixed bed. Inert spacer polymers come in different sizes and configurations to cover a wide range of system configurations.  

• Interface between cation and anion resins in Trilite systems
• Inert guard for top distributors in a packed bed system 
• Underbed protection
• Mixed bed polishing of ultrapure water