Fluval U4 Underwater Filter, up to 240 L

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 240 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. What's Included. 2 Foam Pads. 2 Poly/Carbon Cartridges. BIOMAX Biological Rings