The Maytronics Dolphin S3000 takes the Dolphin ultra-fine filter basket 9991458-ASSY (complete) as its filter; Australian sellers list it from A$260.72 as of 28 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your pool cleaner
Maytronics Dolphin S3000
Pool cleaner
Confirmed against Maytronics's listConfirmed against Maytronics's own compatibility list
Not yours? Change
Takes the 9991458-ASSY filter
Dolphin ultra-fine filter basket 9991458-ASSY (complete) · check the code printed on your old filter before ordering.
Complete ultra-fine filter basket. Maytronics also lists a fine and ultra-fine panel kit, 9991661-ASSY, for this model; none found for sale in Australia (October 2026).
Your pool cleaner
Pool cleaner
Confirmed against Maytronics's listConfirmed against Maytronics's own compatibility list
Takes the 9991458-ASSY
Filter · check the code on your old filter.
Complete ultra-fine filter basket. Maytronics also lists a fine and ultra-fine panel kit, 9991661-ASSY, for this model; none found for sale in Australia (October 2026).
Other Maytronics pool cleaners that take the 9991458-ASSY
GenuineGenuine Maytronics
$260.72
Maytronics Australia · 28 OctLowest genuine · Maytronics Australia · checked 28 Oct
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by Maytronics. Compatible: another brand.Genuine is made by Maytronics. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest price · $260.72
Maytronics Australia. 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.
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AUD, before delivery. Each price shows when it was checked.
Opens Maytronics Australia in a new tab. Their page is the source of truth for price, delivery and returns.
How long it lasts
Replace it when the mesh is torn, cracked or worn at the edges, or stays brown or green after a deep clean, Maytronics says; rinse it after every cycle and deep-clean it about once a month.
After replacing: No reset needed. Robots with a filter indicator on the power supply or app clear it after the filter is cleaned and a new cycle starts; the manual for your model has the details.
How to change the filter in your Maytronics Dolphin S3000
Watch the guide or follow the steps.
- 1Switch off and unplug the power supply. Use the floating cable to bring the robot to the edge, then lift it out by its handle (never by the cable) and let the water drain.
- 2Open the filter cover; the handle lifts up by itself.
- 3Lift out the old filter basket.
- 4Fit the new basket, with its inner net basket in place, and close the filter cover.
Every number this part goes by
- Retail name:
- 9991458
- Retail name:
- 9991458-ASSY
- Retail name:
- 9991458-R1
Sellers list any of these; they are the same part.
About your Maytronics Dolphin S3000
Maytronics pool cleaner — Dolphin S Line (2025). Its filter is the Dolphin ultra-fine filter basket 9991458-ASSY (complete), part 9991458-ASSY.
Other filters the maker lists for this pool cleaner: Dolphin rough filter insert 9983106. Rough filter insert: sits in the basket to catch leaves and large debris before the finer panels; use it when the pool is full of leaves.
Where the model number is: On a robot the model is on the label on the cleaner's body, often underneath, or on its power supply; unplug the power supply and lift the robot out of the pool before you turn it over. On a Polaris pressure cleaner it is on the body and the box.
Fits these 7 Maytronics models
Maytronics7 models
Dolphin S2000, Dolphin S3000. Complete ultra-fine filter basket. Maytronics also lists a fine and ultra-fine panel kit, 9991661-ASSY, for this model; none found for sale in Australia (October 2026).
The other 5 models. Complete ultra-fine filter basket (frame and panels): for fine dust, or if the frame is cracked.
Common questions
- Which filter fits the Maytronics Dolphin S3000?
- The Maytronics Dolphin S3000 takes the Dolphin ultra-fine filter basket 9991458-ASSY (complete). Complete ultra-fine filter basket. Maytronics also lists a fine and ultra-fine panel kit, 9991661-ASSY, for this model; none found for sale in Australia (October 2026).
- Where can I buy the 9991458-ASSY in Australia?
- We track 2 Australian sellers for the 9991458-ASSY; the lowest listed price when we last checked was A$260.72 at Maytronics Australia. Prices are re-checked daily and dated on this page.
- How do I fit the 9991458-ASSY in a Maytronics Dolphin S3000?
- No tools, a few minutes: 4 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- A clogged filter slows the cleaner and it picks up less; a torn one lets fine dirt pass straight back into the water.
- Is there anything to reset afterwards?
- No reset needed. Robots with a filter indicator on the power supply or app clear it after the filter is cleaned and a new cycle starts; the manual for your model has the details.
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