The small footprint of the VT4 point-of-use, single-tap system provides a reliable and economical way to treat drinking water in any residential application, with flow rates up to 4 gpm (13 lpm). Benefits: Space Efficient: Designed to fit under any counter for single tap treatment solutions Reliable: High-performance UV lamp, rigorously tested to provide consistent output over the entire lamp life (9000 hours) The power supply features an LED power and lamp on indicator Safe: Safety-Loc™ connector with interlock that ensures power is disconnected before lamp can be removed Application: Perfect for a wide range of single-faucet, point-of-use or low flow point-of-entry water treatment solutions in homes, cottages, or OEM applications. The VT4 inactivates the following microorganisms: Cryptosporidium, Giardia, E.Coli and Fecal Coliform.