---
product_id: 48900096
title: "U Internal Filters Clean and Clear Cartridge, White"
brand: "fluval"
price: "€ 19.39"
currency: EUR
in_stock: true
reviews_count: 8
category: "Fluval"
url: https://www.desertcart.hr/products/48900096-u-internal-filters-clean-and-clear-cartridge-white
store_origin: HR
region: Croatia
---

# Extends time between water changes Crystal-clear water clarity Compatible with Fluval U1-U4 filters U Internal Filters Clean and Clear Cartridge, White

**Brand:** fluval
**Price:** € 19.39
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your aquarium game with crystal-clear confidence!

## Quick Answers

- **What is this?** U Internal Filters Clean and Clear Cartridge, White by fluval
- **How much does it cost?** € 19.39 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/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

- • **Save Time, Stress Less:** Reduces frequency of water changes, giving you more time to enjoy your aquarium.
- • **Maximize Filter Efficiency:** Works seamlessly alongside Biomax for superior filtration performance.
- • **Trusted Legacy of Innovation:** From Fluval, pioneers of 3-stage filtration technology since 1975.
- • **Universal Fit for Fluval U Series:** Designed specifically for U1, U2, U3, and U4 filters for perfect compatibility.
- • **Pristine Aquarium Water, Effortlessly:** Transforms murky water into sparkling clarity within days.

## Overview

The Fluval U Internal Filters Clean and Clear Cartridge is a high-performance filtration accessory designed for Fluval U1 through U4 filters. It enhances water clarity by efficiently removing impurities, extends the interval between water changes, and works in tandem with Biomax media to maintain a pristine aquatic environment. Backed by Fluval’s decades-long innovation legacy, this cartridge is a must-have for aquarium enthusiasts seeking effortless, professional-grade water quality.

## 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 |
| Best Sellers Rank | 1,977 in Pet Supplies ( See Top 100 in Pet Supplies ) 6 in Aquarium Filter Accessories |
| Brand | Fluval |
| Brand Name | Fluval |
| Country Of Origin | Italy |
| Customer Reviews | 4.6 out of 5 stars 1,123 Reviews |
| Global Trade Identification Number | 00015561104999 |
| Item Form | Cartridge |
| Item Type Name | U Filter Clean & Clear Cartridge |
| Item Weight | 0.05 Kilograms |
| Item form | Cartridge |
| Item weight | 0.05 Kilograms |
| Manufacturer | Rolf C Hagen UK Ltd |
| Target Species | Fish |
| UPC | 015561104999 015561105866 |
| Unit Count | 2 count |

## 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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**Shop now:** [https://www.desertcart.hr/products/48900096-u-internal-filters-clean-and-clear-cartridge-white](https://www.desertcart.hr/products/48900096-u-internal-filters-clean-and-clear-cartridge-white)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-20*