The 10" × 2.5" DI Resin Cartridge with Colour Changing Resin delivers exceptional water purification for RO/DI systems, ensuring your aquarium receives the highest-quality, zero-TDS water. Pre-filled with premium mixed-bed deionization resin, this cartridge removes the final traces of dissolved solids after RO filtration—essential for reef tanks where stability and purity are critical.
The built-in colour-changing indicator shifts from vibrant blue to brown as the resin becomes exhausted, giving you a clear visual cue when replacement is needed. Designed to fit all standard 10" RO/DI housings, this DI cartridge installs easily. It ensures consistent, reliable performance for producing top-tier water for saltwater aquariums, coral grow-outs, frag systems, and freshwater setups.
