Making large volumes of pure water has never been easier or more affordable. This revolutionary point of use system works with your line pressure to create pure RO water. At 60 psi one can expect about 600 GPD+ but with 100 psi production flow rates of 1000 GPD are not uncommon. With 18,000 Gallons of pre-filtration capacity, this is the only system on the market ready to handle a garden of any size! And with Waste water ratios as tight a 2:1 you can feel green while you take care of your garden. Pure Glacier RO systems carry a 3 year warranty.