---
product_id: 2221488
title: "U4 Poly-Carb Cartridge, Replacement Underwater Aquarium Filter Media, 2-Pack, A492"
brand: "fluval"
price: "KD 4.90"
currency: KWD
in_stock: true
url: https://www.desertcart.com.kw/products/2221488-u4-poly-carb-cartridge-replacement-underwater-aquarium-filter-media-2
store_origin: KW
region: Kuwait
---

# Versatile use Chemical filtration Fine debris removal U4 Poly-Carb Cartridge, Replacement Underwater Aquarium Filter Media, 2-Pack, A492

**Brand:** fluval
**Price:** KD 4.90
**Availability:** ✅ In Stock

## Summary

> 💦 Dive into crystal-clear waters with Fluval!

## Quick Answers

- **What is this?** U4 Poly-Carb Cartridge, Replacement Underwater Aquarium Filter Media, 2-Pack, A492 by fluval
- **How much does it cost?** KD 4.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/2221488-u4-poly-carb-cartridge-replacement-underwater-aquarium-filter-media-2)

## 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

- • **Fresh & Clean:** Say goodbye to harmful substances and odors with advanced carbon filtration.
- • **Dual-Sided Power:** Experience unparalleled filtration with two unique sides for maximum efficiency.
- • **Easy Replacement:** Quick and hassle-free cartridge swaps keep your aquarium thriving.
- • **Eco-Friendly Design:** Sustainable materials ensure a cleaner environment for your aquatic friends.
- • **Universal Compatibility:** Perfect for freshwater, saltwater, or even reptile habitats—one solution for all!

## Overview

The Fluval U4 Poly-Carb Cartridge is a high-performance replacement filter media designed for the Fluval U4 Underwater Filter. This 2-pack features a dual-sided design, with one side made of polyester for fine debris filtration and the other side containing carbon to eliminate harmful substances, odors, and colorants. Suitable for various aquatic environments, it ensures your aquarium remains pristine and healthy.

## Description

U4 Poly-Carb Cartridge, Replacement Underwater Aquarium Filter Media, 2-Pack, A492

## Features

- Chemical filter media with two unique filtering sides that combine to provide thorough chemical filtration
- Polyester side filters out fine debris and contaminants
- Carbon side filters out harmful liquid substances, colorants and odors
- Suitable for freshwater, saltwater or reptile environments
- Includes two cartridges designed for use with the Fluvial U4 Underwater Filter

## Product Details

- **Brand:** Fluval
- **Item Weight:** 0.05 Kilograms
- **Item Form:** Cartridge
- **Manufacturer:** Rolf C. Hagen (USA) Corp.
- **UPC:** 015561104920

## Images

![U4 Poly-Carb Cartridge, Replacement Underwater Aquarium Filter Media, 2-Pack, A492 - Image 1](https://m.media-amazon.com/images/I/519t8soBffL.jpg)
![U4 Poly-Carb Cartridge, Replacement Underwater Aquarium Filter Media, 2-Pack, A492 - Image 2](https://m.media-amazon.com/images/I/419vlD1TFCL.jpg)
![U4 Poly-Carb Cartridge, Replacement Underwater Aquarium Filter Media, 2-Pack, A492 - Image 3](https://m.media-amazon.com/images/I/519t8soBffL.jpg)
![U4 Poly-Carb Cartridge, Replacement Underwater Aquarium Filter Media, 2-Pack, A492 - Image 4](https://m.media-amazon.com/images/I/21sE-eXf5PL.jpg)

## Frequently Bought Together

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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.kw/products/2221488-u4-poly-carb-cartridge-replacement-underwater-aquarium-filter-media-2](https://www.desertcart.com.kw/products/2221488-u4-poly-carb-cartridge-replacement-underwater-aquarium-filter-media-2)

---

*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-01-23*