This is a 7001-821 UV compatible replacement lamp for Ultra Dynamics (UDC) uv systems. This uv lamp is guaranteed to work in your Ultra Dynamics (UDC) system. When you purchase from us, you are guaranteed a quality replacement part that is designed to keep your water safe. We support our products and will gladly assist you with any pre or post purchase questions. All of our products carry a 1 year warranty to give you peace of mind with your purchase.
Ultra Dynamics® is the registered trademark of Ultra Dynamics®, the manufacturer of the Ultra Dynamics® ultraviolet systems. WaterFiltrationSupply.com is not affiliated or in association with Ultra Dynamics®. We do not sell originally branded Ultra Dynamics® products. WaterFiltrationSupply.com however sells different brands of ultraviolet lamps and replacement parts that are compatible with Ultra Dynamics® systems and are of equal or greater quality.