---
product_id: 254683861
title: "Fluval U4 Underwater Filter, Freshwater and Saltwater Aquarium Filter, A480, Black"
brand: "fluval"
price: "₨40960"
currency: LKR
in_stock: true
reviews_count: 10
category: "Fluval"
url: https://www.desertcart.lk/products/254683861-fluval-u4-underwater-filter-freshwater-and-saltwater-aquarium-filter-a480
store_origin: LK
region: Sri Lanka
---

# 3-way customizable water flow Sleek black design with easy grip panel 3-stage filtration system Fluval U4 Underwater Filter, Freshwater and Saltwater Aquarium Filter, A480, Black

**Brand:** fluval
**Price:** ₨40960
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate your aquarium game with Fluval U4 — where innovation meets effortless aquatic perfection!

## Quick Answers

- **What is this?** Fluval U4 Underwater Filter, Freshwater and Saltwater Aquarium Filter, A480, Black by fluval
- **How much does it cost?** ₨40960 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/254683861-fluval-u4-underwater-filter-freshwater-and-saltwater-aquarium-filter-a480)

## 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

- • **Flow Your Way:** Three-way flow control lets you customize currents or create stunning waterfall effects—perfect for any tank setup.
- • **Versatile Placement:** Position horizontally or vertically to fit shallow tanks, low water levels, or to enhance aquatic aesthetics.
- • **Effortless Maintenance:** Flip-top lid design means quick, no-fuss cartridge swaps to keep your aquarium pristine without downtime.
- • **Triple-Stage Powerhouse:** Foam, poly/carbon, and biomax filtration for crystal-clear water and superior debris trapping.
- • **Universal Compatibility:** Engineered for freshwater, saltwater, and reptile tanks up to 65 gallons—one filter to rule them all.

## Overview

The Fluval U4 Underwater Filter is a sleek, black, 3-stage filtration system designed for freshwater, saltwater, and reptile tanks up to 65 gallons. Featuring a user-friendly flip-top lid for easy cartridge replacement and a versatile 3-way flow control, it offers customizable water currents and waterfall effects. Its compact design supports horizontal or vertical placement, making it ideal for various tank sizes and setups. Trusted by aquarists for superior water clarity and efficient debris removal, the U4 combines advanced filtration technology with stylish functionality.

## Description

Fluval u4 underwater filter is ideal for use in all aquarium or reptile environments. Use the underwater filter as a primary filter in smaller aquariums or as a supplementary filter for larger aquariums. Fluval underwater filters with three stage filtration are ideal for use in fresh, marine or reptile environments, and are also great for tanks with low water levels. Three stage filtration with biomax for superior aquarium water quality, flip top access for quick and easy cartridge replacement, and three way flow control make the new fluval u series the benchmark in underwater filtration. Stage 1 foam removes large particles. In stage 2, the poly/carbon cartridge traps fine debris, improves water clarity and removes impurities. In stage 3, biomax provides optimal biological filtration efficiency. For more fish tank accessories, check out other fluval products including aquarium filters, aquarium heaters, aquarium air pumps, aquarium lights, aquarium rocks, aquarium thermometers, and aquarium stands. Fluval has a wide variety of products that are perfect for your pet fish to enjoy in any large fish tank, small fish tank, saltwater tank or freshwater tank. Fluval broke onto the aquatic scene in 1975 by introducing the world's first 3 stage filter with synchronous motor technology a breakthrough that is still applied in the industry today. Since then, fluval has built a legacy around this pioneering spirit, relentlessly adapting in a changing world to launch innovative aquarium products that remain at the forefront of technology, and which set the bar in quality, style and functionality. Fluval's mission is not just about building products that mimic the natural world, but inspiring aquarists of all skill levels to enjoy and respect the hobby for generations to come.

Review: Great! - Amazing filter! Best internal filter I have tried so far!
Review: Good for turtle tank - This filter is good for 60L although when we used it for our fish tank, I don’t think it can accommodate the same, so we shifted it for our turtle tank, same 60L but less water content,, because it has only small filter sponge.

## Features

- Use as a primary filter for smaller aquariums, or supplementary filter for larger aquariums
- Sleek design with easy grip water control panel and redesigned media cartridge to trap more debris
- Convenient flip-top lid allows for quick and easy access to filter cartridge for maintenance or replacement
- Position horizontally for shallow tanks, larger tanks with low water levels, or to create a decorative waterfall feature or vertically against aquarium wall to create currents or customized flow patterns
- Designed for freshwater, saltwater and reptile environments up to 65 gallons

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001XRXY1G |
| Allergen Information | Nut Free |
| Batteries Included | No |
| Best Sellers Rank | #4,445 in Pet Supplies ( See Top 100 in Pet Supplies ) #143 in Aquarium Accessories |
| Breed Recommendation | Medium |
| Color | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (8,745) |
| Date First Available | 6 August 2012 |
| Item Form | Power |
| Item Weight | 1.12 Kilograms |
| Item model number | A480A1 |
| Number of Items | 1 |
| Pet Life Stage | All Life Stages |
| Product Dimensions | 11.68 x 13.21 x 35.56 cm; 1.12 kg |
| Quantity | 1 |
| Size | U4 |
| Specific Uses | Indoor |
| Voltage | 230 Volts |
| batteries required | No |

## Product Details

- **Brand:** Fluval
- **Capacity:** 240 Liters
- **Included components:** Filter
- **Installation type:** Freestanding
- **Material:** Metal

## Images

![Fluval U4 Underwater Filter, Freshwater and Saltwater Aquarium Filter, A480, Black - Image 1](https://m.media-amazon.com/images/I/41T6Zfskp5L.jpg)

## Questions & Answers

**Q: Currently have a 10gallon but will upgrade shortly to a 30ish for a yellow eared turtle.  Does this sit on the bottom where it could suck in the food and waste that collects on the bottom where my river rocks are?  It has proven hard to get that out and the pleccu is not cleaning it up as of now.**
A: Mine is laying on the bottom of my tank and i have never had it sitting upright. I can tell you it does pretty well sucking everything up. However, i usually have one spot in the tank, right underneath the filter where debris sits. When I need to water change I just make sure I get the debris out with a fish net. That seems to work pretty well. It is the best filter I have had so far (with a turtle that has killed 4 filters), just make sure to clean the motor fan with every water change or filter media change.

**Q: Does the U4 filter have space to add activated carbon pellets?**
A: Yes it can, in the center of the filter there a removeable plastic cage. I put a small Chemi Pure bag in it. But I didn't care for this filter and not cause it didn't work. But I was wanting something more as a skimmer type filter and I wasn't getting enough flow out this filter unit. But it did work, if your running this on a smaller tank say no 30 gal freshwater ok. I was running it on a 29 gal reef tank with lots of live rock and it couldn't push enough water around it. But it did filter the water good.

**Q: Do all 3 outputs work at the same time?**
A: No, you have to pick a setting. I use mine for moving water in the bottom of my tank. It also seems to be he strongest setting out of the 3 choices

**Q: Can I change the direction of the water coming out of the nozzles? For example directing it upwards instead of horizontal.**
A: There's a small directional piece on the end of each nozzle you can turn to minimally direct the flow - but not nearly that much.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great!
*by D***A on 24 December 2021*

Amazing filter! Best internal filter I have tried so far!

### ⭐⭐⭐ Good for turtle tank
*by H***I on 10 December 2022*

This filter is good for 60L although when we used it for our fish tank, I don’t think it can accommodate the same, so we shifted it for our turtle tank, same 60L but less water content,, because it has only small filter sponge.

### ⭐ Broke down the first minute
*by E***U on 13 February 2024*

The product is USELESS-DEFECTIVE ,as soon as i plug it in ,it work for a minute or two then broke down .....

## Frequently Bought Together

- Fluval U4 Underwater Filter, Freshwater and Saltwater Aquarium Filter, A480,Black
- Fluval U4 Bio-Foam Pad, Replacement Underwater Aquarium Filter Media, A488
- Fluval U Underwater Filter BioMax

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-02*