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40w UV Bulb Product #12974 Price: $82.95 Now Only $74.66 Qty:

For optimal performance, replace your 40w UV bulb in your Pondmaster Submersible Ultraviolet (UV) Clarifier every season even if it continues to light. These bulbs will lose their effectiveness over time. Rated 9000 hours. 20" L

Sorry, no returns on UV bulbs.