About This

• ✅ THE STAGE THAT FINISHES THE JOB – Mixed bed deionization resin polishes RO water to 0 TDS — the final stage reef tanks, planted aquariums and sensitive livestock depend on. Filled with MBD-30 nuclear grade color-indicating resin: watch it change color from top to bottom as it exhausts, and replace when the color front nears the end — no guessing, no TDS creep surprises. Fits standard 10" slim RO/DI housings. DI exhausts faster than other stages — how fast depends on your source water TDS; the color tells you.
• ✅ Cation and Anion resins (H+ and OH-) remove the remaining total dissolved solids (TDS) from membrane-filtered water
• ✅ 10" standard size clear, refillable cartridge includes a top gasket for a secure fit
• ✅ Cartridge housing shape lends itself to efficient water-to-resin contact
• ✅ Filled with high-grade MBD-30 resin that gradually changes color as the resin is depleted

Overview

• Material : Resin
• Product Dimensions : 2.75"D x 2.75"W x 10"H
• Item Weight : 2.4 pounds
• Product Benefits : Removes Total Dissolved Solids (TDS) from membrane-filtered water
• Brand : CFS