Using a UV water-filter system for home water filtration is a great chemical-free way to help purify unsafe drinking water. Since the amount of UV light created by the UV lamp decreases over time, most systems recommend replacing the bulb at least once per year. Applied Membranes Inc. (AMI) creates replacement bulbs that are compatible with Viqua Sterilight systems, depending on the model, and tested to ensure maximum performance. Add AMI quality to your current system with our EPA-compliant replacement bulb. EPA Establishment No. 088776-CAN-001. How to change: Always refer to the product specifications and instructions before replacing the lamp. 1. Confirm your light is compatible with your model of UV-light water filter system. 2. Shut off the water supply and remove the protective cap. 3. Unplug the UV water filter from the power supply, then remove the old bulb. Insert the new bulb and secure it in place, then check for any leaks before reconnecting your UV water-filtration system. Disclaimer: This lamp is a compatible (Applied Membranes brand) UV product. This is not a Sterilight/R-CAN/Viqua-brand lamp. All Sterilight/R-CAN/Viqua brand names, trademarks, and logos are property of Trojan Technologies Group ULC. For almost 40 years, Applied Membranes has been an industry leader in commercial and residential water-filtration systems, introducing the most cutting-edge water-purification technology in compact, accessible systems everyone can use. Our ultraviolet water-purification products are made in the USA. Clean water is our mission, and our customer support team is happy to assist you with any questions. Enjoy pure water at home every day with our premium water treatment systems and accessories.