iSpring UVF11B UV Ultraviolet Light Water Filter NSF Smart Flow Control Switch Eliminate bacteria and other microorganisms in water Mercury-Free Long service life up to 55 years

SMART & ECONOMICAL - Smart flow sensor switch turns the UV water filter under sink on and off automatically with water flow, saving power and lengthening the life of the UV lamp.COMPATIBLE & EASY INSTALLATION - Complete add-on Kit, this ultraviolet light is compatible with most reverse osmosis (RO) water filtration systems as a final stage of protection. If having a tank, install this UV filtration system after the storage tank where water flow is high enough.11W UV lamp of this ultraviolet water filter under sink in a stainless steel chamber with 1/4" inlet/outlet quick connect fittings. Includes a UV lamp made in Poland.EFFECTIVE - The UV water purifier for sink is a suitable solution to filter well water and other problem water sources like water from lakes and streams.LONG LASTING - The lamp of the inline UV filtration systemlasts 8,000 hours; Flow rate: 1.0 GPM. Fit under sink and reverse osmosis RO water filter.