Genuine Maytronics part · Filters
Maytronics Ultra-Fine Filter Assembly With Seal
Part number 9991481-ASSY · UPC 810071220050 · 1 year part warranty
A genuine Maytronics ultra-fine filter basket assembly with seal for Dolphin S200, Dolphin Quantum and Dolphin S300.
$168.99 MSRP
Out of stock
About this part
What it does and when to replace it.
This genuine Maytronics filter basket assembly includes a seal. It captures fine debris as water passes through the robot's filter.
Part 9991481-ASSY replaces the ultra-fine filter basket in confirmed compatible models, including Dolphin S200, Dolphin Quantum and Dolphin S300. Poolbots does not currently stock this part. Contact Poolbots' pool experts by live chat or phone to confirm fit for your robot.
- Use your robot's full model name and part number 9991481-ASSY when asking Poolbots' pool experts to confirm fit.
- Inspect both the filter material and the seal when checking the basket for damage.
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 Proteus DX5i, Dolphin Triton PS Plus, Dolphin S300, Dolphin Active 30, Dolphin T35, Dolphin Explorer E30, Dolphin T45, Dolphin S400, Dolphin Active 40, Dolphin Explorer E50, E30, Dolphin Evolution 30, Dolphin MAESTRO 30, Dolphin MR 30, Dolphin PoolBot PB30, Dolphin RUN 30, Dolphin Seamaster Plus, Superpool, POOLSTYLE 30, Dolphin SM 30, SX 30, Dolphin Avalon 30, Dolphin CARRERA 30, Dolphin E30, Dolphin EX20, Dolphin FORMULA 30, Dolphin Superpool, Dolphin Blue Maxi 30, Dolphin FON 30, Dolphin POOLSTYLE 30, Dolphin SX 30, Dolphin SCOOP COMFORT, E35.
Do it yourself
How to replace it at home.
Switch off and unplug the power supply.
Remove the robot from the pool and open the filter compartment.
Lift out the old ultra-fine filter basket.
Install the replacement basket, making sure its seal is seated correctly.
Close the filter compartment securely before using the robot.
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
Size & Dimension
- Package Dimensions
- 10.8x7.2x8.6 inch
- Gross Weight
- 1.72 lb
General Info
- Warranty (years)
- 1
- UPC
- 810071220050
Questions
Maytronics Ultra-Fine Filter Assembly With Seal, answered.
Does 9991481-ASSY fit my Dolphin robot?
Confirmed compatible models include Dolphin S200, Dolphin Quantum and Dolphin S300. These are not the only compatible models. Ask Poolbots' pool experts by live chat or phone to check your robot's full model name.
Can I buy this part from Poolbots?
Poolbots does not currently stock 9991481-ASSY in its store. This page helps you identify the part. Contact Poolbots' pool experts by live chat or phone for help confirming fit.
What warranty is listed for this part?
The listed part warranty is 1 year.
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