The Fluval U3 internal aquarium filter is versatile, with adjustable flow control and a sleek design for tanks up to 150 l.
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✔ in stock, delivery until 03.08. - 05.08.
46.85 € 

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Overview

The Fluval U2 is a compact and versatile internal filter for aquariums up to 150 l. This internal filter offers a lot of very helpful features, like the flip top, the separately removable filter media inserts or the easy cleaning system. Offering outstanding 3-stage filtration, increased water movement and vital aeration, Fluval U-Series internal filters are the perfect solution where external filtration is not possible. Now with new and improved design features. The Fluval U3 internal aquarium filter is very comfortable in handling. The outflow can be regulated and it can be mounted vertically or horizontally in the aquarium. Thanks to the flexibility in the positioning of the filter, it can be used as a primary filter in smaller aquariums or as a supplementary filter for larger aquariums. Their unique ability to be placed at the bottom of your aquarium makes it ideal for low water levels.

Fluval Aquarium Internal Filter U3

  1. new sleek design
  2. new easy grip water control paddle
  3. new redesigned media cartridge - Traps more debris
  4. the filter cartridge can be used for inserting the Fluval Clean & Clear media
  5. designed for aquariums up to 150 L
  6. use as a primary filter for smaller aquariums, or supplementary filter for larger aquariums
  7. position horizontally for shallow tanks, larger tanks with low water levels, or to create a decorative waterfall feature
  8. position vertically against aquarium wall to create currents or customized flow patterns
  9. convenient flip-top lid allows for quick and easy access to filter cartridge for maintenance or replacement
  10. adjustable 3-way flow control: Top output for circulation and oxygenation, integrated spray bar for a gentle even flow, and bottom output for deepwater agitation
  11. Fluval BioMax biological media included
  12. ideal for freshwater, saltwater and reptile environments

Technical specifications Fluval Internal Aquarium Filter U3
for aquariums up to 150 l
pump output: 600 l/h
outflow can be regulated
power consumption: 230 V/50 hz, 6 W
can be vertically or horizontally mounted
dimensions: 10x8.3x26.7 cm
complete and reday to use with filter cartridges, filter media, diffusor and suction cups
for freshwater, marinewater and reptile tanks suitable

Manual Fluval Aquarium Internal Filter U3

Brand:
Hagen Deutschland GmbH & Co.
Contact according to Art. 19 EU GPSR
Hagen Deutschland GmbH & Co.
Lehmweg 99-105
25488 Holm
customer.service-de@rchagen.com
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  • Lesya wrote about Fluval Aquarium Internal Filter U3 in 2025:
    Everything is great. The filter works reliably, is quiet, and the flow is adjustable. The build quality is excellent and it does its job perfectly. I recommend it.

    Anton P. wrote about Fluval Aquarium Internal Filter U3 in 2018:
    RUS Обратите внимание, что забор воды производится справа и слева только в верхней 1/3 корпуса фильтра!

    Denis wrote about Fluval Aquarium Internal Filter U3 in 2017:
    A good filter. The motor is below, it does not matter how to arrange. Suckers are super, 3 years old, and they can not be torn off the glass. There is a blower control. I removed the filler, put one large sponge to the size of the filter, it was more convenient to wash it and more it became a filtering surface.

    Хороший фильтр. Мотор внизу , не важно как расположить. Присоски супер, 3 года , а их не отодрать от стекла. Есть регулято...


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