Disinfect water of viruses and microbes
Great quality at lowest prices!
High flow rate. Low Pressure Drop
Heavy-duty stainless steel construction
For water pressure up to 100 PSI.
Unlike some UV sterilizers, Wonderlight models feature two end caps making it easy to access the lamp for changing from either end
Convenient external power supply
Pressure drop less than 5 PSI

Frequently Asked Questions

Q. What is GPM?
A. GPM stands for Gallons Per Minute. This refers to the rate at which water is flowing through a pipe. UV sterilizers are rated for the maximum flow rate; they can safely process water and still kill bacteria. So for example, 6 GPM means in one minute, 6 gallons can flow through the UV.

Q. How can I know what size I need?
A. For homes, select the 12 gallon-per-minute ("GPM") PC12 or certified 13 GPM GN15 models. For under the sink or point of use, select the PC2 2 GPM model. Most customers use the GN15 or PC12 fine for homes with 1 - 3 bathrooms.


Q. What is the difference between the PC series and the GN series?
A. The PC series is a good quality, lower cost UV sterilizer. The lamps and sleeves are manufactured by a European company. The GN model is certified, and the lamps are made in the U.S. and are slightly higher quality than the PC series. Both do a good job, however, as long as the water is clear and meets minimum standards for UV treatment. The GN series also comes with a flow control that fixes the flow so it cannot exceed 12 GPM.

Q. Are there any special requirements or conditions my water must have before I can consider using an Ultraviolet Sterilizer to disinfect my water?
A. Water to be treated by UV light should be clear and low in hardness minerals, less than 7 grains per gallon (120 PPM). Water should be free of color. Iron should be less than 0.3 mg/L. Manganese should be less than 0.05 mg/L. The pH range should be 6.5 to 9.5.

Q. Where would I install a UV light sterilizer?
A. Ultraviolet sterilizers are typically installed right before the water enters the home. If you have an existing water softener, it is installed after the softener. Often a 5-micron prefilter is used prior to the UV sterilizer. If iron or manganese is present, install an iron filter system. We often recommend a whole house filter using a dual grade 25 to 1-micron filter cartridge prior to UV sterilizers.

Setup Diagram