---
product_id: 55356969
title: "U3 Internal Filter Carbon Cartridge"
brand: "fluval"
price: "63 zł"
currency: PLN
in_stock: true
reviews_count: 13
category: "Fluval"
url: https://www.desertcart.pl/products/55356969-u3-internal-filter-carbon-cartridge
store_origin: PL
region: Poland
---

# Enhances water clarity 2-in-1 chemical filtration Easy cartridge replacement U3 Internal Filter Carbon Cartridge

**Brand:** fluval
**Price:** 63 zł
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate your aquarium’s clarity game—because your fish deserve the best!

## Quick Answers

- **What is this?** U3 Internal Filter Carbon Cartridge by fluval
- **How much does it cost?** 63 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/55356969-u3-internal-filter-carbon-cartridge)

## 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

- • **Versatile Aquatic Use:** Perfect for freshwater, marine, and reptile tanks alike
- • **Effortless Maintenance:** Quick-swap cartridge design keeps your aquarium pristine with zero hassle
- • **Trusted Genuine Quality:** Authentic Fluval media ensures reliable toxin and odor removal every time
- • **Tailored Fit for Fluval U3:** Engineered exclusively for seamless compatibility and peak performance
- • **Dual-Action Filtration Power:** Combines chemical and mechanical filtration for crystal-clear water

## Overview

The Fluval U3 Internal Filter Carbon Cartridge is a genuine, easy-to-replace 2-in-1 filtration media designed exclusively for the Fluval U3 filter. It effectively traps fine debris, removes odors and toxins, and enhances water clarity across freshwater, marine, and reptile environments, ensuring a pristine aquatic habitat with minimal effort.

## Description

Product Description Fluval U3 Poly-Carb aquarium filter 2 in 1 cartridge removes odours and toxins and creates crystal clear water, genuine Fluval media. Directions Replace cartridge periodically.

Review: as expected - it was a genuine part for the U3 fish filter, works well and good price
Review: Perfect for the Fluval U3 filter - Perfect for the Fluval U3 filter. Arrived on time, well packaged.

## Features

- Provides effective chemical filtration
- Custom fit for the Fluval U3 Filter
- Traps fine debris, improves water clarity and removes impurities
- Easy to replace
- Works in freshwater, marine or reptile environments

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001XRR3E0 |
| Best Sellers Rank | 17,043 in Pet Supplies ( See Top 100 in Pet Supplies ) 186 in Aquarium Filter Accessories |
| Brand Name | Fluval |
| Country Of Origin | China |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,290) |
| Global Trade Identification Number | 00015561104913 |
| Item Form | Cartridge |
| Item Type Name | U3 Poly/Carbon Cartridge (2pcs) |
| Item Weight | 0.03 Kilograms |
| Manufacturer | Rolf C Hagen UK Ltd |
| Manufacturer Part Number | A491 |
| Model Number | A491 |
| Pet Type | Fish |
| Target Species | Fish |
| UPC | 015561104913 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** Fluval
- **Item form:** Cartridge
- **Item weight:** 0.03 Kilograms
- **Manufacturer:** Rolf C Hagen UK Ltd
- **Pet Type:** Fish

## Images

![U3 Internal Filter Carbon Cartridge - Image 1](https://m.media-amazon.com/images/I/41pxTmVeEXL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ as expected
*by S***S on 20 December 2019*

it was a genuine part for the U3 fish filter, works well and good price

### ⭐⭐⭐⭐⭐ Perfect for the Fluval U3 filter
*by M***R on 22 December 2024*

Perfect for the Fluval U3 filter. Arrived on time, well packaged.

### ⭐⭐⭐⭐ Quality.
*by P***N on 4 December 2025*

Very good but don’t fit into the fluval u3 as flush as the u4 ones fit into the respective filter.

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**Shop now:** [https://www.desertcart.pl/products/55356969-u3-internal-filter-carbon-cartridge](https://www.desertcart.pl/products/55356969-u3-internal-filter-carbon-cartridge)

---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-01*