---
product_id: 343695374
title: "U3 Underwater Aquarium Filter 150L (40 US Gal)"
brand: "fluval"
price: "S$137"
currency: SGD
in_stock: true
category: "Fluval"
url: https://www.desertcart.sg/products/343695374-u3-underwater-aquarium-filter-150l-40-us-gal
store_origin: SG
region: Singapore
---

# Adjustable flow control Top-access for easy maintenance 3-stage filtration system U3 Underwater Aquarium Filter 150L (40 US Gal)

**Brand:** fluval
**Price:** S$137
**Availability:** ✅ In Stock

## Summary

> 🔝 Elevate your aquarium game with effortless filtration mastery!

## Quick Answers

- **What is this?** U3 Underwater Aquarium Filter 150L (40 US Gal) by fluval
- **How much does it cost?** S$137 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/343695374-u3-underwater-aquarium-filter-150l-40-us-gal)

## 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:** Customizable flow control adapts perfectly to your tank’s unique needs, promoting optimal water circulation.
- • **Sleek & Durable:** Compact black design blends seamlessly with your aquarium while built to last for years of reliable use.
- • **Trusted by Enthusiasts:** Ranked #202 in Aquarium Accessories with over 2,100 positive reviews—join the community of satisfied aquarists.
- • **Maintenance Made Simple:** Top-access design lets you clean and service your filter effortlessly—no tank disruption required.
- • **Triple-Stage Powerhouse:** Advanced 3-stage filtration ensures crystal-clear water and a healthy aquatic environment.

## Overview

The Fluval U3 Underwater Aquarium Filter is a high-performance filtration system designed for tanks up to 150 liters (40 US gallons). Featuring a 3-stage filtration process, adjustable flow control, and a convenient top-access design, it offers efficient water purification and easy maintenance. Its sleek black finish and durable construction make it a favorite among aquarium enthusiasts seeking reliable indoor filtration solutions.

## Description

Fluval U3 Underwater Aquarium Filter 150L (40 US Gal) : desertcart.ae: Pet Supplies

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001TKZ51E |
| Additional Features | Einfach anwendbar, Innengerät, Langlebig |
| Best Sellers Rank | #5,375 in Pet Supplies ( See Top 100 in Pet Supplies ) #202 in Aquarium Accessories |
| Brand Name | Fluval |
| Color | Black |
| Customer Reviews | 4.1 4.1 out of 5 stars (2,106) |
| Global Trade Identification Number | 00015561104753 |
| Included Components | Internal filter |
| Item Dimensions L x W x H | 30.5L x 15.2W x 12.7H centimeters |
| Item Weight | 1 Pounds |
| Manufacturer | Fluval |
| Manufacturer Part Number | A475A1 |
| Material Type | Plastic |
| Model Number | A475A1 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pet Type | Fish, Reptile |
| Product Style | Top |
| Specific Uses For Product | Indoor |
| Tank Volume | 150 Liters |
| UPC | 015561104753 |
| Unit Count | 1 Count |
| Vivarium Type | Aquarium |

## Product Details

- **Brand:** Fluval
- **Material:** Plastic
- **Product dimensions:** 30.5L x 15.2W x 12.7H centimeters
- **Special features:** Einfach anwendbar, Innengerät, Langlebig
- **Tank volume:** 150 Liters

## Images

![U3 Underwater Aquarium Filter 150L (40 US Gal) - Image 1](https://m.media-amazon.com/images/I/711NY18ER1L.jpg)

## Available Options

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

## 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.

## Frequently Bought Together

- Fluval U3 Underwater Filter – Designed for Freshwater and Saltwater Aquariums, Also Ideal for Terrariums and Turtle Tanks
- Nosiny 20 Pieces Filter Foam Pad Compatible with Fluval U3 Underwater Sponge Aquarium Underwater Filter Accessories Compatible for Aquarium, Fish Tank
- Fluval U3 Underwater Filter Poly/Carbon

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-09-28*