40 Watt Pondmaster UV Clarifier

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Ultraviolet clarifiers eliminate green pond water. The Pondmaster UV clarifier is installed inline on the plumbing after the pump. Easily hooks up to 1-1/2" ID tubing (other plumbing sizes can be adapted to fit)

  • To Clear Green Water (Clarifier) for ponds up to 6000 gallons used at flow rates up to 2400 GPH
  • To kill many bacteria (Sterilizer) for ponds up to 2000 gallons used at flow rates up to 1200 GPH
  • Can be used submerged (recommended) or outside the pond.
  • Glowing Halo Ring visible from any angle shows it's working.
  • 9000 hour long life for lamp
  • 23-1/2" long
  • 4" diameter
  • 18' grounded power cord.
  • Manufacturer's limited 1 year warranty
  • 1-1/2" MPT inlet/outlet, also includes elbows for each that adapt to 1-1/2" barbed fittings.

Pondmaster UV comparison chart

What is the difference between an ultraviolet sterilizer and an ultraviolet clarifier?

Actually, there is not a difference in the units themselves, the difference is in the ratings provided for the appropriate pond size and flow rate. By following UV sterilizer ratings the pond should have clear water despite most other conditions and the UV will also be more effective against controlling microscopic pathogens.

A UV clarifier rating typically means that you may not have crystal clear water all the way to the bottom. It also assumes that the pond has good plant coverage (greated than 50%) and adequate biological filtration. When following UV clarifier ratings it is a good idea to oversize the UV to help ensure cleaner water.

Manufacturer: PondMaster
Manufacturer Model Number: 02940
Made in China

4 Reviews

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  • 5
    40 Watt Pondmaster UV Clarifier

    Posted by Snik on 27th Aug 2018

    I have a pond 3 x 15 x 18 feet, a stream 2 x 2 x 30 feet in length and a set of rapids with a water fall. The water was dark with a slight green color. I installed this unit in the second week of May. Four days and the stream was clearing so I could just make out the bottom and the pond was clear down to 1 ft deep. After six days the water was clear to the bottom in both the pond and the stream. I was skeptical at first, but this product works. I may need a larger pump to meet the manufactures specs, mine is only 1300 GPH.

  • 5
    40 Watt Pondmaster UV Clarifier

    Posted by Gene D on 27th Aug 2018

    My experience was similar to the others. I installed the unit inline submerged between the submerged filter and pump. After 10 days my murky, dark water was crystal clear. It's hot and muggy in the Summer here in South Florida and algae is a big problem. This is the best $200 I've spent. My 3000 gallon pond is 10 x 25 x 3 with a 4000 GPH pump feeding a waterfall. I also added a two outlet air bubbler, and the fish seem much more comfortable with the water temp being at 85 degrees. I feel much better about the health of my fish with this unit than adding chemicals constantly.

  • 5
    40 Watt Pondmaster UV Clarifier

    Posted by O.B.G. on 27th Aug 2018

    The very best $225 I have ever spent. Buy it it will work. My pond took 7 days to clear but wow. I worked on it all summer, it's beautiful 6000 gal.

  • 5
    40 Watt Pondmaster UV Clarifier

    Posted by Joy Summers on 27th Aug 2018

    The uv clarifier has been the very best investment we have made with our pond. In 2 days it took our pond from pea green to crystal clear. now we run the clarifier one day a week to maintain clear water. https://www.youtube.com/watch?v=ybKVoqXz2UE UV Clarifier here http://www.watergarden.org/Pond-Supplies/40-Watt-Pondmaster-UV

Questions about the 40 Watt Pondmaster UV Clarifier?

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