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Maytronics Cartridge Filter Door Assembly for Dolphin M400/M500, Supreme M4/M5, and Liberty Pool Cleaners
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Product Description
⌄The Maytronics 9991047-ASSY is the cartridge filter door assembly for the Dolphin M400, M500, Supreme M4, Supreme M5 and Liberty robotic pool cleaners. It is the genuine Maytronics part, supplied as the complete door assembly.
Why it matters
The filter door is opened every time the cartridges are cleaned, and over a few seasons the hinge and latch wear. A door that has cracked, warped or no longer latches lets debris bypass the cartridges, so the cleaner runs its full cycle and still leaves the floor dirty.
Replacing it
Fitting the new door is a quick job that most owners can do at home with the cleaner on the deck, and it puts an otherwise healthy robot back to full performance.