Changes from Blue to Amber when exhaustedAnion Single Bed Color Changing DI Resin is great for people that want to be more efficient with their deionization resin usage. Single bed resins do require the use of a cation and anion resin followed by a mixed bed resin, but produce much better results and are much more efficient!
Dual Deionization Canister - Bulk Reef Supply
BRS 7 STAGE PRO PLUS RO/DI SYSTEM - Mi Arrecife
Bulk Mix-Bed DI Resin (Color-Changing) LB-MB-DI-CI, 40% OFF
My solution for premature DI resin depletion
Color Changing Mixed Bed DI Resin Cartridge - Buckeye Hydro
Includes BRS PRO DI Resins!, Triple Deionization Saver canister kit complete with HM Digital Triple Inline TDS Meter & BRS Pro Series Single Bed
Triple DI Saver Kit with Resin and TDS Meter
Bulk Color Changing Deionization Resin, 5-Liter –
How to replace DI resin
New filters during through DI REEF2REEF Saltwater and Reef
5 Stage RO/DI Replacement Filter Kit - Aquarium Supply Online