By Maytronics



Part # 9991460-ASSY

Alternate Part #'s DL9991460R1, MAY9991460-R1

Product Description

Ultra Fine Cartridge Assembly for the following Maytronics Robotic Pool Cleaners:

  • Echo 
  • S50
  • Active 10
  • Prowler 910
  • Saturn
  • Cayman
  • E10
  • Escape
  • Encore
  • Nautilus 99996153-US
  • Nautilus CC

The replacement cartridges are part number 9991466-ASSY


?     Asked on 6/23/2017by Anthony Treglia

I have a Dolphin E10. I have heard that there is a fine filter basket for it. The number is Dolphin 9991460-ASSY Cartridge Assembly. Is this true and isn't the basket that came with the robot already the fine filter?

A  Answered on 6/24/2017 by InyoPools Product Specialist Lennox H.

Hi, Anthony. This Ultra Fine Filter Cartridge Assembly will fit the Dolphin E10 unit. The unit only comes with the Spring Filters. 

?     Asked on 7/7/2017by Becky Long

do you have in stock the Dolphin 9991460-ASSY fine filter? And where does it ship from?

A  Answered on 7/8/2017 by InyoPools Product Specialist Lennox H.

Hi, Becky. This item is not currently in stock. It will have to be shipped from the manufacturer. 

?     Asked on 3/10/2019by Linda

I have dolphin echo my filters have rotted I need to replace. Do u have

A  Answered on 3/11/2019 by InyoPools Product Specialist Lennox H.

Hi, Linda. Yes, this Cartridge Assembly - 9991460-ASSY will fit the Maytronics Dolphin Echo cleaner. 

?     Asked on 4/14/2020by Alice

Will the ultra fine filter for the Dolphin E10 pick up pollen and/or mustard algae.

A  Answered on 11/23/2020 by InyoPools Product Specialist Megan C.

The 9991459-ASSY Spring Filter Cartridge Assembly http://www.inyopools.com/Products/14700005088007.htm is the suggested basket for the finer debris like pollen that you will experience in the spring. 

?     Asked on 7/6/2022by James K Knowles

Will this cartridge fit a Dolphin E20?

A  Answered on 7/6/2022 by InyoPools Product Specialist Craig C.

Hello James.  The Ultra Fine Filter Cartridge Assembly - 9991460-ASSY is compatible with the Maytronics Dolphin E20.


Est. Repair Time

Less than 1 hr

Tools Needed


Silt at the bottom of the pool

Written on 7/10/2021 by Guest

Not sure if it is silt, fine sand, or even undissolved chemicals/bindings, but we had a lot of fine material on the bottom of the pool eating the chlorine and making the pool cloudy. All it took was literally changing out the basket from the OEM unit to the Ultra Fine unit and it couldn't be easier. Using the Ultra Fine Filter Cartridge did the trick, even if it took multiple passes.

Were these instructions helpful? 


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