The Great White is a Reverse Osmosis and Deionization system. The standard unit comes with 1-micron sediment filtration, a carbon block for VOC reduction, 3 DOW membranes, and 3 color indicting deionization (DI) resin cartridges.
Thanks for all your help and support. As I said before, your kind of customer support will have me returning time and time again for all my marine needs! Let me know when you head to Hawaii!