The QTI-3 is a triple-cartridge water treatment system with three 15” Qwik-Twist cartridges, parallel-plumbed, that reduces sediment down to 0.5-microns, and reduces chlorine, taste & odor at a flow rate of 6.75 gpm for 67,500-gallons. The system includes IsoNet®, OptiPure’s patented scale inhibiting technology, which delivers consistent protection against the precipitation and accumulation of scale and provides a protective barrier to help guard against corrosion.