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HOME »     FISH »     FILTERS »     INTERNAL FILTERS »     FLUVAL U SERIES UNDERWATER FILTER

Fluval U Series Underwater Filter

Fluval U Series Underwater Filter
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* Fully submersible aquarium filter for enhanced filtration options
* Boost aquarium filtration, water movement and crucial aeration
* Underwater filter features flip-top access for easy media change

FluvalOpen your eyes to a world of unsurpassed underwater aquarium filtration. The versatile Fluval U Series Underwater Filter offers creative new possibilities for aquarium filtration, water movement and crucial aeration in freshwater and saltwater aquariums. Fully submersible filter suction mounts virtually anywhere inside your aquarium, making it the perfect solution for setups where external filtration is not possible. Place horizontally or vertically in your aquarium or even in sump-style filters for added filtration. Adjustable flow rate and directional output nozzle lets you direct water movement where you need it most. Venturi system introduces vital oxygen for a healthy aquarium environment. The top-loading Fluval U Series filter features flip-top media chamber access for fast, efficient maintenance. Quiet running units are easy to install and maintain as primary aquarium filtration or as the ideal supplemental filtration in larger systems with heavy fish loads. Also great for terrariums and turtle tanks.

U2, U3 and U4 feature adjustable 3-way flow to give you custom water movement in your aquarium. Choose top output for maximum circulation and oxygenation, spray bar output for gentle flow in planted aquariums, or bottom output for deepwater agitation.

U1 includes: 1 foam filter pad; U2 includes: 2 foam filter pads, 2 poly/carbon cartridges, and 40 g BioMAX; U3 includes: 2 foam filter pads, 2 poly-carbon cartridges and 40 g BioMAX; and U4 includes: 2 foam filter pads, 2 poly-carbon cartridges and 90 g BioMAX.

Model Stage 1 Filter Foam
Bio/Mechanical Filtration
Stage 2 Poly/Carbon Cartridge
Chemical Filtration
Stage 3 BioMax
Biological Filtration
U1 X NA NA
U2 X X X
U3 X X X
U4 X X X

Specifications
Model Aquarium Size Flow Rate Dimensions Wattage
U1 15 gallons 65 gph 2-1/4" x 2-3/4" x 5-3/4" high 5W
U2 12-30 gallons 105 gph 3" x 3-1/2" x 8" high 5W
U3 24-40 gallons 155 gph 3" x 3-1/2" x 10-1/2" high 7.5W
U4 34-65 gallon 260 gph 3" x 3-1/2" x 13" high 12W

Downloadable Fluval U Series Underwater Filter Instruction Manual PDF
(Requires Adobe Acrobat Reader 4.0 or later - get it here for free)

Please click on "More Information" for filter maintenance tips.

Perfect as main filter or supplement existing aquarium filtration
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Sorry, this item is not eligible for promo offers & coupons.
Sorry, this item is not eligible for promo offers & coupons.
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Please note: Return of electrical equipment to Drs. Foster & Smith for exchange or refund is limited to 60 days from the date of purchase. Beyond 60 days, please contact the manufacturer for repair or replacement as covered by the manufacturer's warranty.

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