- Genuine (OEM) Danner Replacement UV Bulb for 20 watt Pondmaster UV Clarifiers.
- Also used with some models of Pondmaster Pressure filters.
- Pondmaster Item # 12972. Approximately 14.5″ long.
- UV bulbs are replaced annually for best results- about 9000-10000 hours of effective use per bulb.
- If operating properly, and adequately sized for the pond, a UV can nearly guarantee clear water.