OASE Filtoclear 31000 Pond Filter

High-Performance UV Pressure Filter for Medium–Large Ponds

The OASE Filtoclear 31000 is a powerful, easy-to-maintain UV pressure filter designed for ponds from 4500L to 8000L, depending on fish load. We tend to push these filters very often despite their higher price point because we have found over many years of experience that they are extremely reliable, effective and simple. It will sit outside of your pond somewhere in your yard/garden (or in a pump room) and can be partially buried up to the lid. A compatible pond pump sitting inside the pond will pump water from the pond, into the filter and then back into the pond via two lengths of hose.

OASE Filtoclear 31000 UV Pressure Pond Filter

✅ Easy AND Effective Backwash

Canister filters (like this one) are designed to sit outside of your pond. They have an inbuilt ‘backwash’ system to clean them.
Sometimes canister filters get a bad wrap and there is a good reason for this.  95% of them have terrible backwash systems that simply do not work well at removing the dirt from within the filter.  This means that the user needs to periodically open up the filter and squeeze the sponges with their hands, which is not a fun job!
The OASE Filtoclears are the only canister filter on the market that physically squeezes out the sponges from within the filter, without the need to open it up.
It’s very simple technology, but they put a patent on it so no other company can use it.

OASE Filtoclears are the only pressure filters on the market that can be properly cleaned in minutes. Without having to touch a drop of water!

✅ UV Clarification

This filter has an inbuilt 60 watt UV light which prevents the growth of single-celled algae. This algae is what is responsible for your pond water turning green. Ponds that receive sunlight will often turn soupy green in colour, often UV clarification is the only way to keep water crystal clear. UV lights have the added benefit of sterilising harmful bacteria and pathogens within your pond.

These globes become ineffective after approximately 12 months so replace them annually. The Filtoclear 31000 has a small blue light on the lid that indicates when the globe is on, after 12 months your UV globe will likely remain ‘on’ however the wavelengths are no longer effective in killing algae so be sure to replace it regardless

✅ Compatible Pumps & Hosing

  • This filter can handle up to 17,000 litres per hour and requires a solids-handling pump.
  • We recommend pairing it with the OASE Aquamax 17500 pond pump for best results.
  • Use 50mm flexible hose or 40mm hose if needed. Consider 50mm PVC if you’re doing a permanent installation.

Need help selecting the right pump or hose setup? We’re here to help!

Specifications:

Voltage 230V
Wattage 60W
UVC Power 60W
Max Flow Rate 17,000 LPH
Cable Length 5m
Warranty 3 years

Suitable For:

  • Ponds up to 10,000L (no fish)
  • Goldfish ponds up to 6000L
  • Koi ponds up to 4500L

We stock loads of pumps, filters, hosing, and fittings — Not sure which setup is right for your pond?
Get in touch for expert advice — it’s what we do all day!

️ Need Spare Parts for Your OASE Filtoclear 31000?

We keep a range of genuine OASE replacement parts in stock for your convenience:

Can’t find what you’re looking for? We can order any manufactured spare part for this unit directly from OASE. Just
get in touch with us and we’ll reply with pricing and availability.

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Weight 25 kg

Frequently bought together

$2,484.90
For 3 item(s)