Maytronics 9991046-ASSY Dolphin robotic pool cleaner diaphragm, pairMaytronics Diaphragm 2010, Pair, 9991046-ASSY In stock$799
Maytronics 9991046-ASSY Dolphin robotic pool cleaner diaphragm, pair
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Maytronics Diaphragm 2010, Pair, 9991046-ASSY

Ask a questionMPN 9991046-ASSY
$799
In stock
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Quick overview

  • Sold as a pair Two diaphragms in one order, which is how these are normally changed.
  • Genuine Maytronics The factory 9991046-ASSY part for Dolphin robotic cleaners.
  • Wide Dolphin fitment Used across the M200, M400, Nautilus Plus, Triton Plus, C3 and C4 families.
  • A wear item Diaphragms flex constantly in service, so they harden and tear long before the cleaner does.
  • Restores suction behavior A split diaphragm changes how the cleaner draws water and shows up as weak pickup.
  • Straightforward swap Replaced during normal cleaner servicing without special tools.
Full description and specifications ↓

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Product details

The Maytronics 9991046-ASSY is the replacement diaphragm for Dolphin robotic pool cleaners, supplied as a pair. It is the genuine Maytronics part.

Why it wears out

The diaphragm flexes every minute the cleaner runs, in warm chlorinated water. Over a few seasons the rubber stiffens, then cracks, then splits. Owners usually notice it as a cleaner that still drives its pattern but no longer picks up the way it used to, and they replace the filter or blame the motor before checking the diaphragms.

Fitment

This part is used across a wide slice of the Dolphin range, including the Supreme M5, C3 Cb, C4 Cb, M400, M200, C3 Dynamic, Nautilus Plus and Triton Plus. Because they are changed as a set, this listing supplies two.

Specifications
Brand Maytronics
Manufacturer part number 9991046-ASSY
Type Diaphragm
Quantity Sold as a pair
Fits Dolphin Supreme M5, Dolphin C3 Cb, Dolphin C4 Cb, Dolphin M400, Dolphin M200, Dolphin C3 Dynamic, Dolphin Nautilus Plus, Dolphin Triton Plus
Shipping weight 0.1 lb
Ships Parcel

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From Maytronics

Dolphin. A perfectly clean pool. Every. Single. Time.
Leading the way to make your pool water clean, for pure enjoyment. Everything we do has one purpose: an exceptional pool experience.

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Questions and answers

What people ask about this product, answered by our pool techs.

How many do I get?
Two. Maytronics 9991046-ASSY is sold as a pair.
Which Dolphin cleaners does it fit?
The Dolphin Supreme M5, C3 Cb, C4 Cb, M400, M200, C3 Dynamic, Nautilus Plus and Triton Plus.
How do I know the diaphragm has failed?
Look for hardening, cracking or a visible split. A diaphragm that has gone stiff or torn no longer flexes the way the cleaner expects, and performance drops off.
Is this a genuine Maytronics part?
Yes. It is the Maytronics part 9991046-ASSY for Dolphin robotic cleaners.
Ask your own question