The SpectraPure MaxPure MPDI 90 GPD RO/DI System is a high-performance, 4-stage filtration unit designed to produce ultra-pure water essential for thriving saltwater reef aquariums. It effectively removes harmful impurities, including silicates, from tap water, ensuring a pristine foundation for mixing saltwater and topping off evaporation. This system provides hobbyists with a reliable and economical source of contaminant-free water, crucial for maintaining stable water parameters and preventing unwanted algae growth. This advanced RO/DI system features a 90 gallon per day high-silicate removal TFC membrane, ensuring efficient and high-volume pure water production. Pre-filtration is handled by 1 micron MicroTec Sediment and Carbon Block Filters, which protect the membrane and extend its life by removing particulates and chlorine. The final stage incorporates a custom formulated 10 inch Color-Change SilicaBuster DI Cartridge, providing visual indication of resin exhaustion, along with a pressure gauge and hose adapter for convenient operation and monitoring. The SpectraPure MaxPure MPDI 90 GPD RO/DI System is ideally suited for both new and experienced reef aquarists who prioritize water purity without compromising on cost-effectiveness. Its robust design and commercial-grade deionization resins maximize pure water output, making it an excellent investment for maintaining a healthy and vibrant reef environment. This system is perfect for anyone needing consistent access to high-quality water for their marine livestock and corals, ensuring optimal conditions for growth and coloration.