---
product_id: 48900096
title: "U Internal Filters Clean and Clear Cartridge, White"
brand: "fluval"
price: "€ 19.00"
currency: EUR
in_stock: true
reviews_count: 13
category: "Fluval"
url: https://www.desertcart.nl/products/48900096-u-internal-filters-clean-and-clear-cartridge-white
store_origin: NL
region: Netherlands
---

# Extended filter cartridge lifespan Crystal-clear water clarity Seamless Fluval U1-U4 compatibility U Internal Filters Clean and Clear Cartridge, White

**Brand:** fluval
**Price:** € 19.00
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your tank crystal clear and your social feed envy-worthy!

## Quick Answers

- **What is this?** U Internal Filters Clean and Clear Cartridge, White by fluval
- **How much does it cost?** € 19.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/48900096-u-internal-filters-clean-and-clear-cartridge-white)

## Best For

- fluval enthusiasts

## Why This Product

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

## Key Features

- • **Crystal-Clear Aquarium Water:** Transforms murky tanks into pristine aquatic displays within days
- • **Enhances Existing Filtration:** Works alongside Biomax media to boost overall water purity and ecosystem health
- • **Trusted Legacy of Innovation:** From Fluval, pioneers of 3-stage filtration technology since 1975
- • **Perfect Fit for Fluval U Series:** Designed specifically for U1, U2, U3, and U4 filters ensuring optimal performance
- • **Extended Time Between Water Changes:** Reduces maintenance frequency, giving you more time to enjoy your aquarium

## Overview

The Fluval U Internal Filters Clean and Clear Cartridge is a high-performance replacement cartridge designed for Fluval U1 through U4 filters. It significantly improves water clarity, extends the time between water changes, and complements existing Biomax media to maintain a healthy, vibrant aquarium environment. Lightweight and easy to install, this cartridge is a must-have for aquarium enthusiasts seeking hassle-free, professional-grade filtration.

## Description

From the manufacturer fluval ABOUT US Fluval first appeared in aquariums in 1975 by introducing the first 3-stage filter with simultaneous motor technology, a historic breakthrough that still applies in today's industry. Since then, Fluval has forged a legacy around this pioneering spirit, relentlessly adapting to a changing world to launch innovative aquarium products that stay at the forefront of technology and set the bar in quality, style and functionality. FILTRATION LIGHTING HEATING NUTRITION

Review: I swear by these cartridges! - I was struggling with the water clarity in my 200l aquarium which has been up and running for over a year now. Even when everything had settled days after partial water changes, vacuuming the sand etc; the water still didn't look great. (I do only change the filter media when absolutely necessary and normally give it a wash in the old tank water.) I spotted these cartridges on desertcart and thought i'd give it a go; not really expecting much. I put one of these into the Fluval U4 filter and within 2 days the water was clear! I think they're fairly priced and definitely worth a go!
Review: Good! - Works good makes my tank crystal clear

## Features

- Helps keep water beautifully clear
- For Fluval U1,U2, U3 and U4 Filters
- Extends time between water changes
- Add to the central Fluval U cartridge alongside the Biomax

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01G5H9VI8 |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 2,282 in Pet Supplies ( See Top 100 in Pet Supplies ) 6 in Aquarium Filter Accessories |
| Colour | White |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,126) |
| Date First Available | 25 May 2016 |
| Item Form | Cartridge |
| Item Weight | 47 g |
| Item model number | A499 |
| Number of Items | 1 |
| Outer Material | polyester |
| Pet Type | Fish |
| Product Dimensions | 5 x 8.5 x 15.5 cm; 47 g |
| Quantity | 1 |
| Size | Clean&clear |

## Product Details

- **Brand:** Fluval
- **Item form:** Cartridge
- **Item weight:** 0.05 Kilograms
- **Manufacturer:** Rolf C Hagen UK Ltd
- **UPC:** 015561104999 015561105866

## Images

![U Internal Filters Clean and Clear Cartridge, White - Image 1](https://m.media-amazon.com/images/I/81sgCi9Il5L.jpg)

## Questions & Answers

**Q: How often do you change the tiny clean and clear pad**
A: I usually clean it every week to two weeks and change them every couple months.

**Q: where do you put the clean and clear cartridges in a fluval u3 internal filter**
A: In the central part of the filter with the ceramic media

**Q: What's in them, how do they work?**
A: It works like a sponge as it catches all the algae and debris.

**Q: Does one size fit all U series filters**
A: I only know first hand that it fits in a u1 U2 and u3. Unsure of others.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I swear by these cartridges!
*by M***N on 13 December 2023*

I was struggling with the water clarity in my 200l aquarium which has been up and running for over a year now. Even when everything had settled days after partial water changes, vacuuming the sand etc; the water still didn't look great. (I do only change the filter media when absolutely necessary and normally give it a wash in the old tank water.) I spotted these cartridges on Amazon and thought i'd give it a go; not really expecting much. I put one of these into the Fluval U4 filter and within 2 days the water was clear! I think they're fairly priced and definitely worth a go!

### ⭐⭐⭐⭐⭐ Good!
*by M***R on 28 October 2025*

Works good makes my tank crystal clear

### ⭐⭐⭐⭐ Useful addition to Fluval U filters.
*by M***E on 25 June 2022*

Easy to fit in the central cartridge of fluval U series filters, where the Biomax stones go, and helps keep your aquarium water clear. I use mine in my Fluval U3 internal filter and pleased with it.

## Frequently Bought Together

- Fluval U Internal Filters Clean and Clear Cartridge, White
- Fluval U2 Internal Filter Carbon Cartridge
- Fluval Filter Foam Pad for Fluval U1 Filter

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---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-16*