DI Resin (Color Changing),DI Resin is necessary to reduce Total Dissolved Solids (TDS) to zero and is the last stage of an RO/DI unit. It is not necessary to use the expensive proprietary DI cartridges that other RO manufacturers sell. Simply buy a refillable DI cartridge if you don't have one already and fill with DI resin.
How to replace DI resin
Perfect for reefers that use a lot of DI resin!, Triple Deionization Saver canister kit complete with HM Digital Triple Inline TDS Meter! Just add DI
Triple DI Saver with TRM-1 Triple TDS Meter
MixedBedResin Filters are the most popular and exceed the performance of older types ofcartridges. TheDIresin process purifies the water by passing water through two resins that have opposite charges to remove ionized minerals and salts from the water. The plastic beads contain charged anions and cations. The beads with the negative charge are anion resins, and the resins with a positive form are cation resins.
SpectraPure Mixed-Bed Color-Indicating Super di Cartridge
BRS PRO Series Anion DI Resin – badgerlandsaltwater
What's Really in Tap Water & Optimizing Reverse Osmosis RO/DI
BRS color changing DI resin & Reef Community
BRS Pro Mix Bed Resin Part 3- Color Changing
DI Resin Replacement Deionization Color Changing, TDS, Aquariums
Bulk Mix-Bed DI Resin (Color-Changing) 1.25 LB-MB-DI-CI
BRS color changing DI resin & Reef Community
Dual DI Phosphate CO2 & Silica Eliminator with DM-1 Dual TDS
Upgraded by RO/DI Filter - Three Stage DI
Filling an Empty DI Cartridge - Bulk Reef Supply
How to replace DI resin
5 Stage RO/DI Replacement Filter Kit - Aquarium Supply Online