SpectraPure MaxCap RODI 90 GPD w/ Automatic Flush SpectraPure 90gpd MAXCAP RODI System w/ Automatic Membrane Flush incorporates a high-silicate remo 90 gallon per day, high-rejection thin-film composite Reverse Osmosis Membran 2:1 waste ratio produces 50% less waste wat 33% larger High-Capacity (HC) MaxCap DI Cartridge has 4 times more capacity than a typical mixed- 33% larger High-Capacity (HC) Silica-Buster DI Cartridge maximizes silica & phosphate remova