The SpectraPure CSPDI-90 is a 4-stage reverse osmosis deionization system designed to produce ultra-high purity water for your saltwater aquarium. This unit effectively removes impurities, contaminants, and dissolved solids, ensuring you start with a perfect, 000 TDS foundation for your reef tank. By incorporating a high-rejection TFC membrane and specialized deionization resins, it provides consistent, top-quality water essential for the health of sensitive marine life and the prevention of nuisance algae.

This system features a 90 GPD high-rejection TFC membrane, a 0.5-micron MicroTec sediment pre-filter, and a 0.5-micron carbon block pre-filter with a high chlorine removal capacity. A key component is the SilicaBuster™ DI cartridge, which uses semiconductor-grade resins for superior silicate removal. To ensure water quality, a dual-probe TDS meter monitors the output of the RO membrane and the final DI water, while a built-in pressure gauge allows you to monitor system performance. The unit comes complete with clear filter housings, a durable mounting bracket, all necessary tubing, and a garden hose adapter for a straightforward installation.

This RO/DI system is ideal for the dedicated reef aquarist who demands pristine water quality to maintain a thriving and stable environment for delicate corals and invertebrates. Its ability to produce zero TDS water with enhanced silicate removal makes it particularly valuable for hobbyists battling diatom blooms or looking to achieve optimal water chemistry from the start. The combination of high-performance components and monitoring tools provides peace of mind and an excellent value for creating the perfect saltwater mix or for automated top-offs.