Viqua produces Sterilight UV and reverse osmosis filtration systems. These systems have been proven as point of entry or point of use filtration system. UV systems are especially useful with well water or municipal water that has been compromised with dangerous bacteria, including e. Coli, cyclospora, and cryptosporidium. We offer replacement filters for Sterilight RO systems as well as everything you need to install and maintain the UV disinfection component, including replacement ballasts, lamps, and quartz sleeves. If you are concerned about the bacteria in your home or business, contact our customer service agents who will be able to help you select the right water filtration or UV system for your needs.