Hallett® UV water purification system models, with patented Crossfire® Technology, are engineered for simple, efficient multiplex configuration, and treat flows up to 1 MGD (3785 M³/day) for wastewater, reuse and potable applications. Potable treatment systems are NSF/ANSI 55 Class A Certified. Hallett systems are suitable where certification is required or accepted in municipal or institutional, industrial or commercial, transportation and residential applications.