Spectrapure MaxCap RO/DI 90GPD

5 stage premium RO/DI system The standard SpectraPure® MaxCap® 90 and 180 gallons per day (GPD) RODI systems include a 90 GPD TFC membrane for high silicate removal, a 0.5 micron MicroTec sediment and 0.5 micron carbon block prefilter, and a MaxCap® and SilicaBuster® DI cartridge. 5-stage osmosis system with ion exchange resin cartridges for ultra-pure water for your marine aquarium. SpectraSelect Plus osmosis membrane Hand selected membrane with 99% retention rate. All membranes are tested in a proprietary testing procedure at Spectrapure, as the quality of the membranes varies.