AquaUltraviolet 15W UV Sterilizer Replacement Lamps

UV sterilizers work by exposing water to germicidal ultraviolet light as it passes through a quartz sleeve around the lamp — and that output degrades steadily over time whether or not the lamp is visibly lit. At around the 9–12 month mark, most UV lamps have lost 30–40% of their germicidal output even though they still appear to glow normally. A lamp that looks fine is not necessarily a lamp that's sterilizing effectively.

Replace annually on a schedule, not when the lamp fails — waiting for visible failure means months of reduced effectiveness you likely won't notice until a disease outbreak points to it. These are genuine AquaUltraviolet replacement lamps, not aftermarket substitutes, which matters for output specification consistency and safe operation with the OEM ballast and sleeve combination.

Verify the correct wattage and model before ordering — AquaUltraviolet makes multiple 15W configurations and the lamp geometry is not universal across their lineup. When in doubt, check the model number on your unit or contact us before ordering.

Compatibility: AquaUltraviolet 15W Advantage sterilizer series
Replacement interval: Every 9–12 months regardless of apparent function
Important: Allow the lamp to cool completely before handling. UV lamp glass is sensitive to skin oils — handle with gloves or a clean cloth to avoid hot-spot damage. Do not look directly at an operating UV lamp.