---
product_id: 53433611
title: "4 x Compatible Foam and 4 x Compatible Polycarbon Carbon Filter Cartridges to fit Fluval U3 Internal Filter"
brand: "finest-filters"
price: "S$28"
currency: SGD
in_stock: true
reviews_count: 8
url: https://www.desertcart.sg/products/53433611-4-x-compatible-foam-and-4-x-compatible-polycarbon-carbon
store_origin: SG
region: Singapore
---

# Biological filtration Chemical filtration Mechanical filtration 4 x Compatible Foam and 4 x Compatible Polycarbon Carbon Filter Cartridges to fit Fluval U3 Internal Filter

**Brand:** finest-filters
**Price:** S$28
**Availability:** ✅ In Stock

## Summary

> 🌊 Dive into Clarity with Every Filter Change!

## Quick Answers

- **What is this?** 4 x Compatible Foam and 4 x Compatible Polycarbon Carbon Filter Cartridges to fit Fluval U3 Internal Filter by finest-filters
- **How much does it cost?** S$28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/53433611-4-x-compatible-foam-and-4-x-compatible-polycarbon-carbon)

## Best For

- finest-filters enthusiasts

## Why This Product

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

## Key Features

- • **Easy Installation:** Effortlessly replace your filters and keep your aquatic environment thriving.
- • **Crystal Clear Water:** Experience pristine aquarium clarity with our advanced filtration technology.
- • **No Batteries Needed:** Enjoy hassle-free maintenance with our filter cartridges—no batteries required!
- • **Versatile Compatibility:** Designed specifically for Fluval U3, ensuring a perfect fit and optimal performance.
- • **Eco-Friendly Alternative:** Choose sustainability with our compatible, high-performance filter cartridges.

## Overview

The Finest-Filters compatible replacement foam and polycarbon filter cartridges are designed to fit the Fluval U3 internal filter, providing biological, mechanical, and chemical filtration to keep your aquarium water clean and clear. With easy installation and eco-friendly materials, these cartridges are the perfect alternative for maintaining a healthy aquatic environment.

## Description

4 x Compatible Foam and 4 x Compatible Polycarbon Carbon Filter Cartridges to fit Fluval U3 Internal Filter

## Features

- Finest-Filters compatible replacement foam and polycarbon filter cartridges.
- These filter pads are compatible with Fluval U3 range of internal filters
- The plain filter sponges contain the biological cultures, biologically and mechanically filtering the aquarium water
- The polycarbon filter cartridges remove small particles from the water, and the activated carbon chemically filters the water of impurities
- Please Note: This is not a Fluval Product. This is a Finest-Filters alternative which serves the same purpose as the original brand.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions | 19.5 x 13 x 4.5 cm; 60 g |
| Number of Items | 1 |
| Quantity | 1 |
| Batteries required | No |
| Batteries Included | No |
| Item Weight | 60 g |

## Images

![4 x Compatible Foam and 4 x Compatible Polycarbon Carbon Filter Cartridges to fit Fluval U3 Internal Filter - Image 1](https://m.media-amazon.com/images/I/81RMxXxvxvL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Perfect copy
  

*by J***K on Reviewed in the United Kingdom on 18 May 2024*

Looks and seems the exact same as the branded ones at a lower price point.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works great
  

*by C***L on Reviewed in the United Kingdom on 6 May 2023*

Just as good as the much more expensive ones. I'm very happy thankyou.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    These are a good fit for fluva l u3.
  

*by C***H on Reviewed in the United Kingdom on 21 August 2023*

Think these are a good alternative for original fluva l and cheaper!

---

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**Shop now:** [https://www.desertcart.sg/products/53433611-4-x-compatible-foam-and-4-x-compatible-polycarbon-carbon](https://www.desertcart.sg/products/53433611-4-x-compatible-foam-and-4-x-compatible-polycarbon-carbon)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-26*