Maytronics
Maytronics Dolphin Ultra Fine Filter Cartridges (4-Pack) 9991432-R4 – for Nautilus CC Plus/Supreme, Explorer E40 & More
Maytronics Dolphin Ultra Fine Filter Cartridges - 4-Pack
OEM ultra-fine replacement filter panels designed to capture sand, algae, silt, and microscopic debris for superior pool water clarity.
Warranty Information
1-Year Manufacturer Warranty
Ultimate Pools is your first point of contact for compatibility verification, installation guidance, and warranty support.
The Maytronics Dolphin Ultra Fine Filter Cartridges (9991432-R4) are genuine OEM replacement filter panels designed for select Maytronics Dolphin robotic pool cleaners. This complete set of four ultra-fine cartridges captures extremely small particles including fine dirt, sand, algae, pollen, and dust that standard coarse filters may miss.
Ideal for routine maintenance or seasonal replacement, these reusable filter panels help restore your Dolphin cleaner's filtration efficiency while maintaining crystal-clear pool water.
Features
Manufactured for precise fit, dependable operation, and factory cleaning performance.
Captures fine dirt, sand, pollen, algae, and microscopic debris for exceptional water clarity.
Includes four replacement filter cartridges for a complete filter change.
Easily rinses clean with a garden hose for repeated use throughout the season.
Snaps into the filter basket without tools for fast maintenance.
Helps your Dolphin cleaner deliver maximum filtration efficiency and cleaning performance.
Applications
Ultra-fine filters are recommended when your pool contains:
- Fine sand
- Dust and pollen
- Dead algae
- Very small suspended debris
- Cloudy water cleanup
- Routine weekly cleaning for maximum water clarity
Compatibility & Fitment
Compatible with the following Dolphin robotic pool cleaner models and product numbers:
- Dolphin C4 CB: 99991083-C4
- Dolphin Explorer E25 IoT CB: 99996406-XPI, 99996406-XPIDE, 99996406-XPW
- Dolphin Explorer E25 IoT CB Refurbished: 88886406-XPI
- Dolphin Explorer E40: 99991083-XPI, 99991083-XPIDE
- Dolphin Explorer E40 Refurbished: 88881083-XPI
- Dolphin M400 IoT CB: 99991046-USI, 99991053-USI
- Dolphin Nautilus CC Plus CB: 99996403-PC, 99996403-PCF
- Dolphin Nautilus CC Plus CB Refurbished: 88886403-PCF
- Dolphin Nautilus CC Plus Refurbished Open Box: 66666403-PCF
- Dolphin Nautilus CC Plus IoT CB: 99996406-PCI, 99996409-PCI
- Dolphin Nautilus CC Plus IoT CB Refurbished: 88886406-PCI, 88886409-PCI
- Dolphin Nautilus CC Plus IoT Open Box: 66666409-PCI
- Dolphin Nautilus CC Supreme: 99991083-PC, 99991083-PCI
- Dolphin Nautilus CC Supreme Refurbished: 88881083-PC
- Dolphin Oasis Z5i IoT CB: 99991079-USI
- Dolphin Sigma IoT CB: 99991036-SPLI
- Dolphin Wave 60 CB: 99991060-US
- Dolphin Wave 60 CB Refurbished: 88881060-US
- Dolphin Wave 80 CB: 99991080-US
Compatibility may vary by production year, cleaner configuration and filter panel design. Verify your exact model, product number and existing filter panels before ordering.
Specifications
| SKU | 9991432-R4 |
| UPC / EAN | 810071220913 |
| Brand | Maytronics / Dolphin |
| Product Type | Robotic Pool Cleaner Filter Panels |
| Filter Type | Ultra Fine |
| Quantity | 4 Filter Panels |
| Gross Weight | 0.662 lb / 0.3 kg |
| Package Dimensions | 9.843 × 2.362 × 16.929 in / 25 × 6 × 43 cm |
| Compatibility | Select Dolphin C-Series, Explorer, M-Series, Nautilus, Oasis, Sigma and Wave robotic pool cleaners |
| Warranty | 1-Year Manufacturer Warranty |
| Final Sale | Yes |
Frequently Asked Questions
They capture extremely small particles such as sand, pollen, algae, dust, and fine suspended debris that standard coarse filters may miss.
Yes. Rinse them thoroughly with a garden hose after each cleaning cycle. Replace them when they become damaged or no longer clean effectively.
They're ideal for routine weekly cleaning, after algae treatment, or whenever your pool contains fine dirt or cloudy water.
Yes. The 9991432-R4 filter kit is an authentic Maytronics OEM replacement designed specifically for compatible Dolphin robotic pool cleaners.
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