Replacement bulbs for the QL Series UV Modules. Ultraviolet light bulbs lose their effectiveness over time, and should be replaced every 8-12 months for the most effective sterilization and clarification of your water.
Replacement bulb for the 25W QL Series UV Module. Ultraviolet light bulbs lose their effectiveness over time, the same way fluorescent bulbs lose their color spectrums from continued use. UV bulbs should be replaced every 8-12 months for the most effective sterilization and clarification of your water.