The Nanopure Infinity Ultrapure Water Base System, Model D8961, produces up to 1.5 L/min of water, on demand. Bench or wall mountable without need for additional brackets. Remote dispenser can deliver water up to 9' from the unit. All water pathways constructed of virgin polypropylene or fluoropolymer resin. Easy-to-read, pivoting LCD provides digital indication of resistivity and conductivity, or total dissolved solids. Calibration verification of electronics is accomplished automatically on start-up. User programmable set point alerts when unit should be sanitized or cartridges changed at the desired purity level. In standby mode, water is recirculated for 10 minutes every hour to ensure that water quality is maintained within the system during periods of non-use.