6 stage RO DI water system for Aquarium, aeroponics, misting, hydroponics, ultra pure water applications | Use high capacity 150GPD RO membrane and generate 120 gallons per day on average household water supply pressure | 1st stage sediment filter, 2nd & 3rd stage carbon filter, 4th stage TFC-150 RO membrane, 5th & 6th stage color changing DI filters | The system comes complete with all filters, tubing, instruction, under-the-sink installation hardware and extra garden hose adapter | This system is designed and assembled in Santa Ana, CA, USA. We have been making RO systems for 23+ years. The systems we built are reliable and guaranteed to perform