The Lifegard Aquatics 15W GT5 UV Sterilizer Replacement Lamp for 15W QL-Series UV sterilizers and the Aquastep Pro 15 Watt UV Sterilizer. This is also the correct replacement lamp for the discontinued 8W and 10W QL-Series UV Sterilizers (although the lamp will only put out 8W and 10W respectively). This lamp will not work with the old style Aquastep 15 Watt UV Sterilizer. Lifegard Part# R175229DP.

We carry the many other replacement parts for this product. The QL Series Protective Sleeve and Quartz Sleeve Gasket should be replaced every year for safe and maximum performance.