Replace UV bulb annually. Overtime the lamps ability to emit UV light decreases. Remember UV light is invisable - the the lamp might still be glowing but not enough to effectively neutrilize the bacteria on your filter
Used lamps should be handled/disposed of in accordance with federal, state and local regulations. Check with your local hazardous material recycling facility or bring your unbroken bulb to Home Depot's free, national in-store, consumer bulb recycling program at all 1,973 The Home Depot locations.
Brand: Alen Corp
Made In: China
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