---
product_id: 48844432
title: "U4 Filter Carbon Cartridge"
brand: "fluval"
price: "฿1033"
currency: THB
in_stock: true
reviews_count: 13
category: "Fluval"
url: https://www.desertcart.co.th/products/48844432-u4-filter-carbon-cartridge
store_origin: TH
region: Thailand
---

# Works in freshwater & marine 2-in-1 chemical filtration Easy cartridge replacement U4 Filter Carbon Cartridge

**Brand:** fluval
**Price:** ฿1033
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate your aquarium game with Fluval U4’s powerhouse filtration!

## Quick Answers

- **What is this?** U4 Filter Carbon Cartridge by fluval
- **How much does it cost?** ฿1033 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/48844432-u4-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

- • **Effortless Maintenance:** Quick and simple cartridge swaps keep your tank healthy without hassle
- • **Tailored Fit for Fluval U4:** Custom-designed cartridge ensures seamless integration and optimal performance
- • **Trusted Quality & Performance:** Highly rated by thousands, delivering reliable filtration that your aquatic life deserves
- • **Crystal Clear Water, Every Time:** Removes odors, toxins, and impurities for pristine aquarium clarity
- • **Versatile Aquatic Compatibility:** Perfect for freshwater, marine, and reptile tanks—one cartridge, endless possibilities

## Overview

The Fluval U4 Filter Carbon Cartridge is a precision-engineered 2-in-1 chemical filtration media designed exclusively for the Fluval U4 filter. It effectively traps fine debris, removes odors and toxins, and enhances water clarity across freshwater, marine, and reptile environments. Lightweight and easy to replace, this cartridge ensures hassle-free maintenance while supporting a healthy aquatic ecosystem.

## Description

Product Description Fluval U4 Poly-Carb aquarium filter 2 in 1 cartridge removes odours and toxins and creates crystal clear water, genuine Fluval media. Directions Remove old cartridge, insert new Fluval U4 Poly-Carb cartridge, and restart the filter. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Box Contains Cartridge See more

Review: Fantastic Fluval - The filter cartridge arrived promptly the next day to be used in my newly set up fish tank. I was given a used filter from a friend and decided to use new cartridges and media inside. Once out of the pack the quality of the filter is excellent and so easy to install and fit inside of the filter housing. The top unclips which makes it so easy to remove and then clean. Since it has been in use the fish are all happy and healthy so it is doing exactly as it is meant to function. Money well spent on a quality product.
Review: Filter cartridge - Exactly what it says on the tin

## Features

- Provides effective chemical filtration
- Custom fit for the Fluval U4 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 | B001XRVX8C |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 3,180 in Pet Supplies ( See Top 100 in Pet Supplies ) 14 in Aquarium Filter Accessories |
| Colour | Mehrfarbig |
| Compatible Devices | Fluval U4 Underwater Filter |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,883) |
| Date First Available | 2 Feb. 2010 |
| Item Form | Cartridge |
| Item Weight | 51 g |
| Item model number | A492 |
| Number of Items | 1 |
| Pet Life Stage | All Life Stages |
| Pet Type | Fish |
| Product Dimensions | 7.11 x 7.11 x 4.57 cm; 51 g |
| Quantity | 1 |
| Size | 2.4 x 0.6 x 3.4 cm |

## Product Details

- **Brand:** Fluval
- **Item form:** Cartridge
- **Item weight:** 0.05 Kilograms
- **Manufacturer:** Rolf C Hagen UK Ltd
- **UPC:** 015561104920

## Images

![U4 Filter Carbon Cartridge - Image 1](https://m.media-amazon.com/images/I/519t8soBffL.jpg)

## Available Options

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

## Questions & Answers

**Q: Do the u3 and u4 use the same?**
A: The u4 is longer than the u3 cartridge , you could use a u3 in a u4 but it would just be a bit short in the cage that holds it

**Q: Do the u3 and u4 use the same?**
A: No they are different sizes, hope that answers your question

**Q: how many poly/carbon cartridges in a box?**
A: Hi there are two carbon cartridges in the box. I find them a great asset to my tank and keep it clean.

**Q: Is this for an internal U4 filter**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fantastic Fluval
*by N***L on 17 September 2024*

The filter cartridge arrived promptly the next day to be used in my newly set up fish tank. I was given a used filter from a friend and decided to use new cartridges and media inside. Once out of the pack the quality of the filter is excellent and so easy to install and fit inside of the filter housing. The top unclips which makes it so easy to remove and then clean. Since it has been in use the fish are all happy and healthy so it is doing exactly as it is meant to function. Money well spent on a quality product.

### ⭐⭐⭐⭐⭐ Filter cartridge
*by M***R on 15 November 2025*

Exactly what it says on the tin

### ⭐⭐⭐⭐ Filter
*by P***T on 16 June 2024*

Ok

## Frequently Bought Together

- Fluval U4 Filter Carbon Cartridge
- Fluval U4 Internal Filter Foam Pad
- Fluval U Internal Filters Clean and Clear Cartridge, White

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**Shop now:** [https://www.desertcart.co.th/products/48844432-u4-filter-carbon-cartridge](https://www.desertcart.co.th/products/48844432-u4-filter-carbon-cartridge)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-10*