The Fluval U3 Internal Filter is part of the trusted U-Series, developed to deliver effective and efficient filtration for aquariums. Building on years of design refinement, this internal filter provides reliable water circulation and multi-stage filtration to help maintain a clean and healthy aquatic environment.

**ITEM IN ORIGINAL BOX** SCRATCHED**

Suitable for aquariums between 90 and 150 litres, the U3 draws water through its internal chamber where foam, carbon, and polyester media work together to deliver biological, mechanical, and chemical filtration. Clean, filtered water is then returned to the tank, helping to improve oxygenation and overall water quality.

Designed for ease of use, the filter features convenient top access for quick maintenance, along with an adjustable flow rate and directional output nozzle for tailored water movement. It operates quietly and can also be used in reptile tanks, offering flexibility across different setups.

Key Features:

• Multi-stage filtration including biological, mechanical, and chemical media
• Suitable for aquariums from 90 to 150 litres
• Flow rate of 600 litres per hour
• Adjustable flow control for customised performance
• Directional output nozzle for targeted water circulation
• Top access design for easy maintenance
• Quiet operation for minimal disruption
• Includes foam filter media
• Compatible with additional replacement media including carbon, polyester, and BioMax
• Suitable for aquarium and reptile tank use

This internal filter provides a practical and dependable solution for maintaining water clarity and quality, with simple maintenance and adaptable features to suit a variety of aquatic setups.

Specifications:

• Suitable Tank Size: 90–150 litres
• Flow Rate: 600 litres per hour
• Installation: Internal (suction cup mounted)
• Filtration Types: Biological, mechanical, chemical
• Maintenance Access: Top access

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Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.