The QTI1+CR is a dual-cartridge water treatment system with two Qwik-Twist cartridges, which reduces sediment over 0.5-microns and reduces chlorine up to 20,000-gallons at a flow rate of 2.5 gpm and chloramine up to 6,000-gallons at 0.5 gpm. The system includes IsoNet®, OptiPure’s patented scale-inhibiting technology, which minimizes the precipitation and accumulation of scale, and provides a protective barrier to help guard against corrosion.