PURA UV Systems offer that extra level of purification that you don't get in most water filtration systems. With an ultraviolet system, you get the added peace of mind that your water is free from viruses, bacteria and cysts that can make your family sick. To ensure that your system is working properly, it is important to keep your UV system well maintained. The UV lamp should be replaced every 12 months. Quartz sleeves should be inspected and cleaned frequently and replaced as needed. If you need any assistance selecting the right replacement parts for your UV system, please call one of our Certified Water Specialists at 1-800-779-1340.