Fluval U4 Underwater Filter

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.

Features

• Designed for aquariums up to 65 US Gal / 110 L
• 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

Whats Included

• 2 Foam Pads
• 2 Poly/Carbon Cartridges
• BIOMAX Biological Rings

Other sizes available:

• A465 Fluval U1 Underwater Filter, for aquariums up 55 L (15 US gal)
• A470 Fluval U2 Underwater Filter, for aquariums from 45 to 110 L (12 to 30 US gal)
• A480 Fluval U4 Underwater Filter, for aquariums from 130 to 240 L (34 to 65 US gal)