The VH200-V NSF/ANSI 55 Class B UV system is a reliable and economical way to treat drinking water in any residential application, with flow rates up to 7.8 gpm (29.5 lpm). Benefits: Space Efficient: High UV output lamp technology allows for a smaller footprint while providing the same UV performance as a longer chamber. Ease of Maintenance: Audible lamp replacement reminder and countdown timer with digital display. A controller will also go into alarm if the lamp fails. Reliable: The constant current feature ensures stable UV lamp output, regardless of power fluctuations. High-performance UV lamp, rigorously tested to provide a consistent output over the entire lamp life (9000 hours). Application: Perfect for a wide range of whole-home, point-of-entry water treatment solutions in homes, cottages, or OEM applications. The VH200-V inactivates heterotrophs to reduce the heterotrophic plate counts (HPC). The VH200-V is validated to deliver 16 mJ/cm2 which is also sufficient for inactivation of E.Coli and Fecal Coliform.