Pond filter foam
OASE replacement foam set FiltoClear 31000
77875
Fits 1 model
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GenuineGenuine OASE
$379.50
The Fish Works · 28 OctLowest genuine · The Fish Works · checked 28 Oct
CompatibleCompatible option
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No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by OASE. Compatible: another brand.Genuine is made by OASE. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest price · $379.50
The Fish Works. Every seller we track is listed below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Compare 1 seller
AUD, before delivery. Each price shows when it was checked.
Opens The Fish Works in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Replace it when it is worn or torn; OASE lists the foams as wear parts and gives no interval.
How to change the 77875 pond filter foam
Watch the guide or follow the steps.
- 1Unplug the FiltoClear and switch off the pump that feeds it.
- 2Open the metal clamping ring with its lever and lift off the lid.
- 3Take out the foams, noting the order they sit in. The new set has coarse blue, medium purple and fine red foams (10, 20 and 30 ppi).
- 4Fit the new foams in the same order, check the lid seal, refit the lid and close the clamping ring.
- 5Switch the pump back on, then plug the filter back in. Between replacements, clean the foams with the pull-out cleaning mechanism, with the 2-way valve set to send the dirty water to waste; set it back to the pond afterwards.
Every number this part goes by
- Retail name:
- 11OS425
- Retail name:
- 77875
- Retail name:
- FiltoClear 31000 foam set
Sellers list any of these; they are the same part.
Will it fit your appliance?
Type your model number and we'll check it against the makers' lists.
Fits this OASE model
OASE1 model
Common questions
- What does the 77875 fit?
- The OASE replacement foam set FiltoClear 31000 (part 77875) fits the OASE FiltoClear 31000.
- Where can I buy the 77875 in Australia?
- We track 1 Australian seller for the 77875; the lowest listed price when we last checked was A$379.50 at The Fish Works. Prices are re-checked daily and dated on this page.
- How do I fit the 77875?
- No tools, a few minutes: 5 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- A torn or worn-out foam lets dirt through to the pump and the water clouds.
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