AquaFX Mixed-Bed DI Resin is a crucial component for producing ultrapure water essential for saltwater reef aquariums. This non-color-changing formulation effectively removes remaining total dissolved solids (TDS) from reverse osmosis (RO) water, ensuring your tank receives pristine, zero ppm water free from harmful contaminants. It is designed to deliver superior water quality necessary for the health and stability of sensitive marine ecosystems.

This premium DI resin is nuclear grade and features a strong acid strong base virgin resin blend. Unlike recycled resins from other industries, AquaFX's virgin resin guarantees purity by preventing the introduction of heavy metals like copper back into your water stream. Its non-color-indicating nature is ideal for users who observe DI resin changing color prematurely before a rise in TDS, indicating efficient media life without unnecessary visual cues. It is compatible with all standard refillable RO/DI filter shells, including AquaFX, BRS, Spectrapure, Vertex, and IceCap systems.

Perfect for serious aquarists, large volume users, and professional service companies, this bulk 1 cubic foot package offers an efficient solution for large water changes and maintaining consistent water quality. It allows for cost-effective replacement of DI resin in your existing RO/DI system once your output TDS is no longer zero ppm. This bulk option ensures you always have a reliable supply of high-performance resin to safeguard your reef aquarium against unwanted impurities.