Fluval Internal/Underwater Filters

Fluval U-Series Internal Filters – 3-Stage Filtration, Increased Water Movement, and Aeration
Fluval U-Series Internal Filters provide outstanding 3-stage filtration, vital aeration, and increased water movement, making them the perfect solution when external filtration isn’t an option. Designed for both smaller and larger aquariums, these filters can be used as a primary filter for smaller tanks (up to 110L or 55L, depending on the model) or as a supplementary filter for larger setups.

With a sleek, modern design and a convenient flip-top lid for easy access to the filter cartridge, maintenance and replacement are simple. The adjustable 3-way flow control allows you to customize the filtration and water movement, with options for circulation, oxygenation, and deep-water agitation. The integrated spray bar ensures a gentle, even flow, while the bottom output is perfect for creating currents.

This filter includes BIOMAX biological media to enhance biological filtration, improving water quality and providing a healthy environment for your aquarium. Whether positioned horizontally for shallow tanks, larger tanks with low water levels, or vertically to create currents and customized flow patterns, the Fluval U-Series is designed for versatility. It’s ideal for freshwater, saltwater, and reptile environments.

• 3-stage filtration for superior water quality

• Adjustable 3-way flow control for customized water movement

• BIOMAX biological media included for enhanced filtration

• Convenient flip-top lid for easy cartridge maintenance and replacement

• Ideal for aquariums up to 110L or 55L, depending on the model

• Suitable for freshwater, saltwater, and reptile environments

• Made in Italy for quality craftsmanship

Our shipping starts at only $8.95.