Oase FiltoClear UV Ballast Unit - 24W

These are the genuine replacement electrical UV ballasts for Oase FiltoClear pond filters. This 24...

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www.pond-planet.co.ukOase Filtoclear 12000/16000/20000/30000 Uv Ballast Units
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B&QB&Q - Filtoclear Uv Ballast 36W 20000 15536
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Product Information

Full details

The Oase FiltoClear 24W UV Ballast is an essential maintenance component for pond owners utilizing the Oase FiltoClear 16000 filtration system who want to maintain crystal-clear water. By ensuring your UVC lamp receives consistent electrical power, this genuine replacement part restores the germicidal efficiency required to combat green pond water, though it is specifically calibrated for the 24W model and will not function with higher-wattage UVC units.

All features

Model Part Number21308
BrandOase

Extended Product Information

FAQs

Does this ballast include a new UV bulb?

No, this is the ballast unit only. The UV bulb must be purchased separately.

Can I use this for my FiltoClear 36W system?

No, this unit is specifically rated for the 24W model. Using it on a 36W system will not provide sufficient power for the lamp.

How do I know when the ballast needs replacing?

If the UV bulb is new but will not turn on, or if the indicator light on the filter unit does not illuminate, the ballast is likely the cause.

Is this a genuine Oase part?

Yes, this is an official Oase replacement part with MPN 21308.

Do I need an electrician to install this?

No, the design allows for user-friendly, plug-and-play installation following the standard maintenance steps for your filter.

Troubleshooting

UV indicator light remains off after installation

Check that the lamp is securely seated in the socket and the ballast is fully plugged into the power source.

Visible water inside the ballast housing

Disconnect power immediately, dry the area thoroughly, and inspect the O-rings for wear before attempting to restart.

Pros and Cons

Pros

  • Genuine manufacturer part ensures safety and compatibility
  • Restores full UVC lamp performance for better water clarity
  • Simple, tool-free installation in most scenarios
  • Reliable, long-lasting construction for outdoor pond environments

Cons

  • Compatibility limited strictly to the 24W FiltoClear system
  • Does not include a replacement UVC bulb
  • Requires careful handling to avoid moisture ingress in the ballast housing

Setup, Compatibility & Care

To install your new ballast, ensure the filter is disconnected from the power source. Remove the housing cap covering the electrical assembly, unplug the old ballast, and seat the new unit firmly in place. Always ensure the rubber gaskets are correctly positioned to prevent moisture from reaching the electrical components. This unit is compatible only with the Oase FiltoClear 16000 (24W version). Avoid using this unit with 36W systems, as it will lead to improper bulb operation or failure. Periodically check the connection seals and clear away any debris from the housing to extend the lifespan of the electronic components.

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