iSpring UVF11A UV Disinfection Sterilizer Water Filter with Smart Flow Sensor Switch, 1-GPM 11-watt 110-volt, Ideal for

Unique flow sensor switch turns the UV unit on and off automatically with water flow, saving power and lengthening the life of the UV lamp.
Kills 99% of bacteria, virus, and protozoan cysts. Perfect solution to purifying well water and other problem water sources containing excessive microorganisms like water from lakes and streams.
11W UV lamp in stainless steel chamber. Includes Philips lamp made in Poland
Complete ADD-ON Kit, can be added to most RO systems as a final stage to the system
Flow rate: 1.0 GPM; Lamp lasts 8,000 hours