The S2Q-PA Viqua Tap Plus UltraViolet Water Sterilization System tackles common waterborne microorganisms such as bacteria, viruses, and cysts including Giardia and Cryptosporidium. The S2Q-PA deactivates the DNA of microorganisms using Ultraviolet Light. Deactivated microorganisms are incapable of reproducing in your drinking water. The S2Q-PA Viqua Sterilight Water Sterilization System is both quick to install and a breeze to maintain. The disinfection lamps last for up to 12 months and can be replaced without turning off your water supply. Make an investment in cleaner, fresher-tasting water by ordering today!