Maytronics Dolphin Complete Filter Basket Assembly – M600 / M700 / X6 / Ultimate (9991660-ASSY)

Genuine Maytronics Dolphin Complete Filter Basket Assembly — part no. 9991660-ASSY. This is the complete filter basket unit for Dolphin M600, M700, X6, and Ultimate robotic pool cleaners. The filter basket traps algae, sand, leaves, dust, and fine debris as the cleaner works. Replace when the filter fabric is torn, perforated, clogged beyond rinsing, or no longer holds its shape.

Compatibility

• Maytronics Dolphin M600
• Maytronics Dolphin M700
• Maytronics Dolphin X6
• Maytronics Dolphin Ultimate

Product Details

• Brand: Maytronics (Dolphin)
• Part number / SKU: 9991660-ASSY
• Type: Complete filter basket assembly
• Genuine Maytronics spare part

Frequently Asked Questions

What does the filter basket do in a Dolphin robotic pool cleaner?

The filter basket collects all the debris the Dolphin cleaner picks up during its cleaning cycle — including algae, sand, fine dust, leaves, and other particles. After each cleaning cycle, the basket is removed, rinsed clean, and reinstalled. A well-maintained filter basket is essential for the cleaner to maintain strong suction and thorough pool coverage.

How do I know when the filter basket needs replacing?

Replace the filter basket when: the filter fabric is visibly torn or has holes; the fabric is permanently clogged and cannot be fully cleaned by rinsing; the basket no longer sits or seals correctly inside the cleaner; or cleaning performance has noticeably declined despite a clean basket. Regular inspection after each use extends basket life.

Is this the complete basket assembly or just the filter fabric?

This is the complete filter basket assembly (9991660-ASSY), which includes the basket frame and filter media as a ready-to-install unit. It is not just a replacement filter fabric insert.

Does this suit other Dolphin models?

Part 9991660-ASSY is specifically listed for the Dolphin M600, M700, X6, and Ultimate. Other Dolphin models use different filter basket part numbers. If you are unsure which part suits your cleaner, check your Dolphin model number on the underside of the unit or contact us before ordering.