Fluval Underwater Filter
U1
A modernised design with an easy-grip water control paddle, the redesigned filter boasts an improved media cartridge that effectively traps more debris. Specifically crafted for aquariums up to 55 L (15 US Gal), it serves as a primary filter for smaller tanks or a supplementary filter for larger ones. Versatile positioning options cater to various tank types, including shallow or larger tanks with low water levels, as well as the creation of decorative waterfall features. The filter can be positioned horizontally or vertically against the aquarium wall, offering customizable flow patterns. Its convenient flip-top lid allows swift access to the filter cartridge for maintenance or replacement. BioMax biological media is included, and the filter is suitable for freshwater, saltwater, and reptile environments. Proudly made in Italy.
U2/U3/U4
The Fluval U Series Underwater Filters feature an Adjustable 3-Way Flow Control with top output for circulation and oxygenation, an integrated spray bar for a gentle even flow, and bottom output for deepwater agitation. These filters offer efficient 3-stage filtration, including BIOMAX biological filtering in U2, U3, and U4 models, ensuring superior aquarium water quality.
The U Series, comprising U1, U2, U3, and U4 Underwater Filters, is versatile for use in fresh, marine, and reptile environments. The 3-way flow control allows customisable water flow positions, with top output for maximum circulation, integrated spray bar for planted aquariums, and bottom output for deepwater agitation.
Featuring a convenient flip-top lid for easy access to the filter cartridge, these filters include Fluval’s Clean & Clear cartridge (A499) with high-performance resins, reducing phosphate and nitrate while preventing algae spread. The U Filters can be installed vertically for custom flow patterns or horizontally for decorative features, such as waterfalls.
The Fluval U1 Underwater Filter is suitable for smaller aquariums as a primary filter or larger ones as a supplementary filter, including tanks with low water levels. It comes with adjustable flow control and a foam pad for efficient filtration.
Available in:
Fluval U1 is suitable for aquariums up to 55 L (15 U.S. gal.).
Fluval U2 Underwater Filter, for aquariums from 45 to 110 L (12 to 30 U.S. gal.)
Fluval U3 Underwater Filter, for aquariums from 90 to 150 L (24 to 40 U.S. gal.)
Fluval U4 Underwater Filter, for aquariums from 130 to 240 L (34 to 65 U.S. gal.)