Aquarium Filters

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 …

Chemical filtration: special activated carbon to isolate water dyes and unpleasant odours
Mechanical filtering: Double layer filter fleece for reliable removal of even the smallest suspended particles. White side = coarse pre-filter, green side = fine filter
Biological filtering: filter sponge and organic filter balls with extra large surface area to settle beneficial bacteria