Home/Filtration & Media/Filtration/Internal/U Series/U2 Underwater Filter, up to 30 US Gal (110 L)

U2 Underwater Filter, up to 30 US Gal (110 L)

SKU: A470 | UPC: 015561104708
Format: 4 L x 3.5 W x 8 H" (10 L x 9 W x 20 H cm)
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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.

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  • Designed for aquarium up to 30 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 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
MODEL
Item #
U1
A465
U2
A470
U3
A475
U4
A480
UPC015561104654015561104708015561104753015561104807
Aquarium Capacity14.5 US Gal
(55 L)
12-30 US Gal
(45-110 L)
24-40 US Gal
(90-150 L)
34-65 US Gal
(130-240 L)
Pump Output65 US Gal/h
(250 L/h)
105 US Gal/h
(400 L/h)
155 US Gal/h
(600 L/h)
260 US Gal/h
(1000 L/h)
Wattage
(120V/60Hz)
5 W5 W6 W12 W
Wattage
(230-240V/50Hz)
4.5 W5 W7.5 W10 W
Dimensions
(L x W x H)
4 x 3 x 6"
(10 x 8 x 15 cm)
8 x 3.5 x 4"
(20 x 9 x 10 cm)
10.5 x 3.25 x 4"
(26.7 x 8.3 x 10 cm)
13 x 4 x 4.5"
(33 x 10 x 11 cm)
  • 2 Foam Pads
  • 2 Poly/Carbon Cartridges
  • BioMax Biological Rings

3 YEAR LIMITED WARRANTY

Fluval U Series Power Filters are guaranteed against defects in material or workmanship under normal aquarium usage and service for 3 years. We offer a 3 year guarantee on all nonreplaceable parts which means that the filter will be repaired or replaced at the manufacturer’s discretion, free of charge, when the complete pump is returned with proof of purchase and postage paid. This warranty does not apply to any filter that has been subjected to misuse, negligence, or tampering. No liability is assumed with respect to loss or damage to livestock or personal property irrespective of the cause thereof.

INSTRUCTION MANUAL

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BIO-FX2021-09-23T16:03:16-04:00

BIO-FX

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Why is it recommended to replace half the biological media every six months? Will I disturb my cycled aquarium by doing so?

Over time, the pore structure of various biological medias can become clogged with debris and as such cannot be colonized by nitrifying bacteria species. We recommend replacing half of the biological media every six months in order to maximize the surface available to these bacteria. Doing so will have have no effect on a cycled aquarium.

What’s the difference between Biomax and Bio-FX?

Bio-FX nodes are larger and contain a greater surface area for beneficial bacteria colonization.

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BIO-FOAM VALUE PACK2020-10-15T14:55:54-04:00

BIO-FOAM VALUE PACK

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Should I rinse my foam pads/blocks in tap water or aquarium water?

The surface area available within the pore structure of Fluval foams allows for extensive colonization of nitrifying bacteria, which helps to enhance the biological filtration process. In order to avoid losing this bacteria, it is recommended to rinse foam pads/blocks in aquarium water.

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ESSENTIAL MEDIA VALUE PACK2020-10-15T14:50:49-04:00

ESSENTIAL MEDIA VALUE PACK

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Should I rinse my foam pads/blocks in tap water or aquarium water?

The surface area available within the pore structure of Fluval foams allows for extensive colonization of nitrifying bacteria, which helps to enhance the biological filtration process. In order to avoid losing this bacteria, it is recommended to rinse foam pads/blocks in aquarium water.

What material is Fluval Carbon made from?

Fluval Carbon is made from bituminous coal, which is the best overall source material for carbon used in aquarium water filtration due to its varying pore structure and sizing.

Does Fluval Carbon absorb liquid plant food in my aquarium?

Carbon, especially when new, can remove some trace elements present in many liquid plant supplements. We recommend waiting at least a week or two after having changed the carbon in your filter before dosing with a liquid plant supplement.

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BREEDING BOXES2020-10-15T14:00:28-04:00

BREEDING BOXES

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Which air pump should I use with the breeding box?

Fluval breeding boxes should be used with an air pump that produces 1 L / minute of flow. We recommend the Fluval Q.5 air pump (Item #A849).

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SURFACE SKIMMER2020-10-01T12:19:21-04:00

SURFACE SKIMMER

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Does the Fluval Surface Skimmer only draw water from the surface of the aquarium?

The Fluval Surface Skimmer intakes water from both the top of the unit – at the water surface – and the bottom of the unit, in the water column. A control knob at the top of the unit allows control of the amount of water that passes through each intake.

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AQUACLEAR2020-10-01T11:53:17-04:00

AQUACLEAR

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