
Quick overview
- A complete set of four All four elements the cleaner takes, so the whole filter is renewed at once.
- Catches the fine stuff These elements pick up fine debris such as sand and silt, not just leaves.
- Wide Dolphin fitment Fits the Nautilus, Triton, Wave 75, Edge, Quest and Premier.
- Also fits Pentair Prowler The same cartridges serve the Prowler 820 and Prowler 830.
- Genuine Maytronics The factory Dolphin cartridges, part 9991425.
- Restores suction Clogged or split elements make a cleaner work harder and leave debris behind, and a fresh set puts the flow back.
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Product details
This is a set of four replacement filter cartridge elements for Dolphin robotic pool cleaners, Maytronics part 9991425. They are the standard cartridges, made to catch fine debris such as sand and silt along with the usual leaf and grit load.
Which cleaners take them
The set fits the Dolphin Nautilus, Triton, Wave 75, Edge, Quest and Premier, and it also serves the Pentair Prowler 820 and Prowler 830.
When to change them
Cartridges do not last forever. Once the media is packed with fine silt that will not rinse out, or a panel splits, the cleaner pulls harder for less flow, climbs poorly and leaves dirt in the pool. Owners often blame the motor when the filter is the problem. A fresh set of four is the cheapest thing to try first.
A finer option
Maytronics also makes an ultra fine version of this cartridge set for pools that carry very fine dust. It is a separate part number.
| Brand | Maytronics |
|---|---|
| Manufacturer part number | 9991425-R4, 9991425-ASSY |
| UPC | 890908002684 |
| Type | Filter cartridge element |
| Quantity | Set of 4 |
| Filtration | Fine debris such as sand and silt |
| Fits | Dolphin Nautilus, Dolphin Triton, Dolphin Wave 75, Dolphin Edge, Dolphin Quest, Dolphin Premier, Pentair Prowler 820, Pentair Prowler 830 |
| Shipping weight | 0.9 lb |
| Ships | Parcel |
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