Ensure pure water free of tap water impurities for optimal water quality. Aquaforest Demineralization Resin produced in laboratory conditions boasts highest quality and performance.
Fill Refillable DI resin cartridge (usually the last or fourth stage of RO/DI units) for ultimate tap water purification. RO water free of minerals and impurities is the ideal choice for preparing high quality synthetic saltwater for marine aquariums, especially reef aquariums housing demanding corals.
Use in RO filters mainly as the last stage of tap water purification.