
Genuine Maytronics part · Filters
Ultra-Fine Debris Filter Panels (4 Pack)
Part number 9991467-R4 · UPC 810071220944 · 1 year part warranty
Genuine Maytronics replacement ultra-fine filter panels for Dolphin S200, Dolphin Quantum and Dolphin Active 20 robots.
$124.99 MSRP
Not stocked by Poolbots. Sold on Amazon as a genuine Maytronics part.
Ships from Amazon.com. As an Amazon Associate, Poolbots earns from qualifying purchases.
About this part
What it does and when to replace it.
These genuine Maytronics Ultra-Fine Debris Filter Panels capture ultra-fine debris in compatible Dolphin pool-cleaning robots. Part 9991467-R4 has a one-year part warranty.
Maytronics' compatibility listing includes Dolphin S200, Dolphin Quantum and Dolphin Active 20. The pack contains four panels to replace the robot's ultra-fine filter panels. Poolbots does not currently stock this part. Ask Poolbots' pool experts by live chat or phone to confirm fit for your exact model.
- Keep track of filter use so you know when it reaches the recommended 200-hour replacement point.
- Have your exact Dolphin model name and part number 9991467-R4 ready when contacting Poolbots' pool experts.
Compatibility
Fits these Dolphin robots.
Confirmed by Maytronics' compatibility checker and each robot's own spare-parts list.
Also listed by Maytronics for: Dolphin ADVANTAGE ULTRA, Dolphin S200, Dolphin Quantum, Dolphin Active 20, Dolphin ADVANTAGE PRO, Dolphin Proteus DX4, Dolphin Triton PS, Dolphin Premium, Dolphin Proteus DX5i, Dolphin Triton PS Plus, Dolphin S300, Dolphin Active 30, Dolphin T35, Dolphin Explorer E30, Dolphin T45, Dolphin T55i, Dolphin M600, Dolphin Active 60, Dolphin Explorer E70, Dolphin SCOOP SMART, E30, Dolphin Evolution 30, Dolphin MAESTRO 30, Dolphin MR 30, Dolphin PoolBot PB30, Dolphin RUN 30, Dolphin Seamaster Plus, Superpool, Z1B, Dolphin WOLLY, POOLSTYLE 30, Dolphin SM 30, SX 30, Dolphin Avalon 30, Dolphin Cainan 2, Dolphin CARRERA 30, Dolphin E30, Dolphin ENERGY 200, Dolphin EX20, Dolphin FORMULA 30.
Do it yourself
How to replace it at home.
Switch off and unplug the power supply.
Confirm that part 9991467-R4 is compatible with your exact Dolphin model.
Follow your robot's model-specific filter instructions to remove the old panels.
Install the replacement panels according to those same instructions.
Step-by-step answers for this kind of part
How do I replace the filter panels on my Dolphin robot?Video15 min
Find your model below, then follow its video and instructions. The panel removal and installation steps vary by filter design.
S50 (Cayman, T15, T25, Active 10, Escape, Encore, E20, E25) & S100 (Advantage, Proteus DX3, Saturn, Echo, Nautilus CC, Active 15, Escape, Liberty 200/300/400)

Step 1Remove the old filter panels
- Lift the filter cover open.
- Take the filter basket out of the robot.
- Press the plastic release at the top of the filter's wide side, then lift out the released panel. The narrow side panels come out easily. The front and back panels are secured with screws, so use a Phillips-head screwdriver to release them.
- Follow the same process for the opposite side panel.
Step 2Install the replacement panels
- Slide a replacement panel into the basket.
- Push the panel against the frame until it clicks into place.
- Fit the other side panel the same way.
- With both panels in position, clip the filter's bottom section back into place.
S200 (E30, Advantage Ultra, Active 20, Quantum, T30, Proteus DX4, Triton PS) / S300 (E35/E35i, Proteus DX5i, Active 30, T35/T45, Premium 40, Explorer E30, E40i, Active 30i, T55i) / S400 (E50i, Active 50, Explorer E50) / Liberty 600

Step 1Remove the old filter panels
- Lift the filter cover open.
- Take the filter basket out of the robot.
- Press the plastic release at the top of the filter's side, then lift out the panel that releases.
- Work through the remaining narrow and wide panels using the same method.
Step 2Install the replacement panels
- Set the bottom edge of a replacement panel into the filter's lower rail.
- Push the panel into the frame so it clips into the filter.
- Press it against the frame until you hear it click.
- Fit each remaining narrow and wide panel the same way.
Premier/Dx4 (Bag filter)

Filter bag setup for Dolphin Premier
- Turn the robot upside down so you can reach the filter area.
- Release the clips underneath the filter assembly.
- Lift the assembly out of the robot.
- If the white filter screen is not already fitted, secure it with the two screws.
- Check that the filter bag sits securely on the assembly's guard rails.
- Put the filter bag assembly back in, following the guide and video.
Filter cartridge assembly setup for Dolphin Premier
- Turn the robot upside down so you can reach the filter area.
- Release the clips underneath the filter assembly.
- Lift the assembly out of the robot.
- Make sure the white filter screen is not installed for this setup.
- Follow the guide and video to reinstall the assembly.
- Fasten the clips underneath the assembly to secure it.
M250 (Dx3, Nautilus CC Plus)

Step 1Prepare the filter cartridges
- Lift the filter covers and take the cartridges out of the robot.
- Release the clips at the top of each cartridge.
- Inspect the non-return flap for debris.
- Check that the frame is clean before fitting replacement panels.
Step 2Fit the replacement panels
- Seat the locating tabs along the bottom of each panel in the matching grooves on the base frame.
M400/M500 (Sigma, Nautilus CC Supreme, Aquarius XL, Oasis)

Step 1Prepare the filter cartridges
- Lift the filter covers and take the cartridges out of the robot.
- Release the clips at the top of each cartridge.
- Inspect the non-return flap for debris.
- Check that the frame is clean before fitting replacement panels.
Step 2Fit the replacement panels
- Seat the locating tabs along the bottom of each panel in the matching grooves on the base frame.
M600/M700 (Active 60, E60i, Premium 60, Explorer E70)

Step 1Remove the old filter panels
- Lift the filter cover open.
- Take the filter basket out of the robot.
- Press the plastic release at the top of the filter's side, then lift out the panel that releases.
- Work through the remaining narrow and wide panels using the same method.
Step 2Install the replacement panels
- Set the bottom edge of a replacement panel into the filter's lower rail.
- Push the panel into the frame so it clips into the filter.
- Press it against the frame until you hear it click.
- Fit each remaining narrow and wide panel the same way.
Replacement panels and filter care
You can purchase replacement filter panels from Poolbots. Before ordering, confirm that the panel part number matches your robot. For help choosing the correct panels, contact Poolbots' pool experts by live chat or phone.
Additional references:
Specifications
General Info
- Warranty (years)
- 1
- UPC
- 810071220944
Size & Dimension
- Package Dimensions
- 17.0x2.4x9.9 inch
- Gross Weight
- 0.662 lb
Questions
Ultra-Fine Debris Filter Panels (4 Pack), answered.
Which Dolphin robots use these filter panels?
Maytronics lists Dolphin S200, Dolphin Quantum and Dolphin Active 20 among the compatible models. This is not the full list. Ask Poolbots' pool experts by live chat or phone to confirm fit for your robot.
How many filter panels come in the pack?
Part 9991467-R4 contains four replacement ultra-fine filter panels.
How often should I replace the filter?
Maytronics recommends a new filter once it has been used for 200 hours.

































