Fluval U3 Internal Filter

Fluval U3 Internal Filter

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U3 Underwater Filter, up to 150 L (40 US Gal)

Item #: A475 | UPC:015561104753
Format: 10 L x 8.3 W x 26.7 H cm (4 L x 3.25 W x 10.5 H")

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.


Designed for aquarium up to 40 gallons

Use as a primary filter for smaller aquariums, or supplementary filter for larger aquariums

Position horizontally for shallow tanks, larger tanks with low water levels, or to create a decorative waterfall feature

Position vertically against aquarium wall to create currents or customized flow patterns

Convenient flip-top lid allows for quick and easy access to filter cartridge for maintenance or replacement

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

BioMax biological media included

Made in Italy

Ideal for freshwater, saltwater and reptile environments