Pondmaster UV Replacement Bulbs is the replacement UV Bulb for the Pondmaster UV Clarifiers. Average "Useful Life" is 9000 hour - A good rule of thumb is to replace every year at the beginning of pond season for best results!

• Replacement UV Bulb for Pondmaster UV Clarifiers
• Average 9000 hour "useful life"
• Replace yearly for optimum pond clarification

10, 20, 40 watt UV bulb - Quantity 1 per package. Clean or Replace Quartz Sleeve when replacing UV Lamp. Pondmaster UV Bulb has a 4 pin base.

• 10 Watt UV Bulb - Fits Pondmaster 10 Watt UV Clarifier
• 20 Watt UV Bulb - Fits Pondmaster 20 Watt UV Clarifier
• 40 Watt UV Bulb - Fits Pondmaster 40 Watt UV Clarifier