---
product_id: 453477631
title: "M400 Ultra Fine Cartridge Filter Replacement for Dolphin Nautilus CC Plus"
brand: "funmit"
price: "¥12923"
currency: JPY
in_stock: true
reviews_count: 8
category: "Funmit"
url: https://www.desertcart.jp/products/453477631-m400-ultra-fine-cartridge-filter-replacement-for-dolphin-nautilus-cc
store_origin: JP
region: Japan
---

# Ultra-fine pleated filtration Reusable up to 3 years Heavy-duty ABS frame M400 Ultra Fine Cartridge Filter Replacement for Dolphin Nautilus CC Plus

**Brand:** funmit
**Price:** ¥12923
**Availability:** ✅ In Stock

## Summary

> 💧 Dive into crystal clarity with filters that work as hard as you do!

## Quick Answers

- **What is this?** M400 Ultra Fine Cartridge Filter Replacement for Dolphin Nautilus CC Plus by funmit
- **How much does it cost?** ¥12923 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/453477631-m400-ultra-fine-cartridge-filter-replacement-for-dolphin-nautilus-cc)

## Best For

- funmit enthusiasts

## Why This Product

- Trusted funmit brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Heavy-Duty ABS Frame:** Engineered to resist deformation and maintain peak hydraulic efficiency season after season.
- • **Long-Lasting & Easy Maintenance:** Simply rinse every 4-6 weeks to keep performance optimal for up to 3 years—less fuss, more splash.
- • **Value-Packed 4-Pack Replacement:** Keep your pool pristine year-round with a convenient multi-pack that guarantees uninterrupted cleaning.
- • **Ultra-Fine Pleated Filter Design:** Maximizes debris capture from sand to hair, ensuring crystal-clear pool water every swim.
- • **Precision Fit for Top Dolphin Models:** Seamlessly compatible with Nautilus CC Plus, M200, M400, M500 & more—upgrade without hassle.

## Overview

The Funmit Ultra Fine Cartridge Filter Replacement is a premium 4-pack designed for Dolphin robotic pool cleaners including Nautilus CC Plus, M200, M400, and M500 models. Crafted with a heavy-duty ABS plastic frame and ultra-fine pleated filter paper, it traps sand, leaves, hair, and debris more efficiently than standard filters. Easy to maintain with rinsing every 4-6 weeks, each filter lasts up to 3 years, ensuring your pool stays immaculate with minimal effort.

## Description

M400 9991432-R4 pool cartridge filter

Review: fits and works great. - This fit my pool vacuum great. Nice replacement and it works.
Review: Makes SUCH a difference! - These ultra fine filters, make a huge difference in the clarity of our water and the amount of particles that our dolphin picks up! We have had this pool cleaner for three years and they are just starting to show wear. Easy Peezy to order a new set and snap them in! Well, worth the money for the clarity of our pool. It is immaculate!

## Features

- Wide Application: Compatible with Dolphin Robotic Pool Cleaners Nautilus CC Plus filter, M400, M500, M200, M4, M5, Wave 65, Wave 90, C3, C4, Oasis Z5i, Aquarius XL, Liberty, Odyssey, Sigma, Triton Plus(old), Replaces Maytronics part # 9991432-R4. Please confirm whether your model is applicable before purchasing
- Please Note: NOT fit for Nautilus CC, M600, E10, E20, S200/300/300i, Escape, Cayman, Proteus DX3, DX4 & DX5i, S50, S100, Active 10, 15, T15, T25, 20/30/30i, T35/45/55i, Prowler 910 & 917, 920/930, Triton PS/PS Plus, Saturn, Advantage, Echo, Encore, Solo, Warrior SE/SI/SL, Mercury, Discovery, Quantum and Premium, 9991463-R4, 9991468-R4
- Premium Quality: Make with Heavy-duty ABS Plastic Frame and Super-Fine Pet Filter Paper with pleated, firmly supports the filter layer and prevents it from breaking during operation. Not easily deformed when pool water flows through, providing maximum hydraulic efficiency and overall structural stability
- High Efficiency Filtration: With clever pleats, traps sand, leaves, hair, debris better than normal fabrics for maximum filtration efficiency, keeping your pool crystal clear
- Maintenance Performance: Please rinse the filter every 4-6 weeks for optimal performance. Timely cleaning and correct use the fiter can last 2-3 years. Package Includes: 4 x 9991432-R4 pool cartridge filter. Product Dimension: 10 1/2" x 6 3/8"
- Shop With Confidence: Funmit adhere to provide all customers with a simple, streamlined shopping experience of large appliance replacement parts, and prove that we have the highest quality parts and service out there. We stand by our products, and our customers are our focus as a business. If you have any quality problem, please contact Funmit customer service team in time, and we will try our best to solve your problems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09XK8VN9F |
| Best Sellers Rank | #34,469 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #111 in Cartridge Pool Filters |
| Brand | Funmit |
| Brand Name | Funmit |
| Color | White |
| Control Method | Touch |
| Customer Reviews | 4.7 out of 5 stars 217 Reviews |
| Efficiency | High |
| Included Components | 4 x 9991432-R4 pool cartridge filter |
| Installation Type | robotic |
| Manufacturer | Funmit |
| Manufacturer Part Number | Filter Cartridge Panel CC -4 |
| Material | Heavy-duty ABS Plastic Frame |
| Material Type | Heavy-duty ABS Plastic Frame |
| Model Name | 9991432-R4 |
| Model Number | 9991432-R4 |
| Other Special Features of the Product | Traps sand, leaves, hair, debris better. |
| Power Source | Battery Powered |
| Required Assembly | No |
| Special Feature | Traps sand, leaves, hair, debris better. |
| Unit Count | 4.0 Count |
| Warranty Type | Limited |

## Product Details

- **Brand:** Funmit
- **Color:** White
- **Material:** Heavy-duty ABS Plastic Frame
- **Model Name:** 9991432-R4
- **Power Source:** Battery Powered

## Images

![M400 Ultra Fine Cartridge Filter Replacement for Dolphin Nautilus CC Plus - Image 1](https://m.media-amazon.com/images/I/71QvO6+xE0L.jpg)

## Questions & Answers

**Q: Do these fit the dolphin Premier?**
A: Dear Customer,
Sorry, doesn't fit.
Our ultra fine filters compatible with Dolphin Robotic Pool Cleaners Nautilus CC Plus filter, M400, M500, M200, M4, M5, Wave 65, Wave 90, C3, C4, Oasis Z5i, Aquarius XL, Liberty, Odyssey, Sigma, Triton Plus(old), Replaces Maytronics part # 9991432-R4. 
Thank you for your question.
If you have any problems please kindly contact us.
Funmit

## Customer Reviews

### ⭐⭐⭐⭐⭐ fits and works great.
*by A***R on April 17, 2025*

This fit my pool vacuum great. Nice replacement and it works.

### ⭐⭐⭐⭐⭐ Makes SUCH a difference!
*by A***H on August 16, 2025*

These ultra fine filters, make a huge difference in the clarity of our water and the amount of particles that our dolphin picks up! We have had this pool cleaner for three years and they are just starting to show wear. Easy Peezy to order a new set and snap them in! Well, worth the money for the clarity of our pool. It is immaculate!

### ⭐⭐⭐⭐⭐ A necessary upgrade!
*by A***R on October 21, 2024*

My robot came with the basic filters. Little did I know that these super fine filters existed. The basic items are great for the large trash that accumulates in the pool, but these high performance filters take out the finer particles and keep the pool water crystal clear! Perfect fit, great value. Very durable after many cleanings.

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**Shop now:** [https://www.desertcart.jp/products/453477631-m400-ultra-fine-cartridge-filter-replacement-for-dolphin-nautilus-cc](https://www.desertcart.jp/products/453477631-m400-ultra-fine-cartridge-filter-replacement-for-dolphin-nautilus-cc)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-02*