Entire device conforms to IEC UL standard 60601-1 Recirculation feature reuses excess product water reducing water usage up to 45% RO is fed with cleaner water, improving the quality and performance of the unit Plug-n-play controller provides easier access to program changes and disinfect mode Controller keeps you informed of operating conditions by displaying water quality readings and alarms The system will prevent product water flow to the patient if an alarm signals Quick and easy onboard disinfection with the push of a keypad Large membrane has the capacity to feed two dialysis machines, even on cold water Nephros dual stage ultra-filter blocks microbiological contaminants down to 0.005 microns Test ports on the front cabinet simplifies sample taking