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U1 Underwater Filter, up to 55 L

U1 Underwater Filter, up to 55 L

Item #: A465 | UPC: 15561104654

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.

Models

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Features

New Sleek Design
New Easy Grip Water Control Paddle
New Redesigned Media Cartridge – Traps more debris
Designed for aquariums up to 55 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
BIOMAX biological media included
Made in Italy
Ideal for freshwater, saltwater and reptile environments
1 foam pad included

Videos & Articles

Instruction Manual & Warranty

Download Now

Looking for Parts? View All U Series Parts

Questions & Answers

What general maintenance tips do you have for U series filters?

Why isn’t the spray bar or bottom outlet of my U series filter producing bubbles?

The venturi air valve only operates on the top outlet of the filter.

Why will my U Series filter not restart after maintenance?

The impeller assembly may be dirty. Detach the motor, pull out the impeller, and clean it and the impeller well. Also inspect the impeller for long-term wear, as it operates 24 hours/day and does require periodic replacement.

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Compare Models & Specs

U1 Underwater Filter

up to 15 US Gal / 55 L

Item #

A465
UPC

15561104654
Aquarium Capacity

up to 15 US Gal / 55 L
Pump Output (120 V / 60 Hz)

65 US GPH / 250 LPH
Wattage (120 V / 60 Hz)

5W
Wattage (230-240 V / 50 Hz)

4.5W
Dimensions

4″ L x 3″ W x 6″ H / 10 x 8 15 cm

U2 Underwater Filter

up to 30 US Gal / 110 L

Item #

A470
UPC

15561104708
Aquarium Capacity

up to 30 US Gal / 110 L
Pump Output (120 V / 60 Hz)

105 US GPH / 400 LPH
Wattage (120 V / 60 Hz)

5W
Wattage (230-240 V / 50 Hz)

5W
Dimensions

8″ L x 3.5″ W x 4″ H / 20 x 9 x 10 cm

U3 Underwater Filter

up to 40 US Gal / 150 L

Item #

A475
UPC

15561104753
Aquarium Capacity

up to 40 US Gal / 150 L
Pump Output (120 V / 60 Hz)

155 US GPH / 600 LPH
Wattage (120 V / 60 Hz)

6W
Wattage (230-240 V / 50 Hz)

7.5W
Dimensions

10.5″ L x 3.25″ W x 4″ H / 27 x 8 x 10 cm

U4 Underwater Filter

up to 65 US Gal / 240 L

Item #

A480
UPC

15561104807
Aquarium Capacity

up to 65 US Gal / 240 L
Pump Output (120 V / 60 Hz)

260 US GPH / 1000 LPH
Wattage (120 V / 60 Hz)

12W
Wattage (230-240 V / 50 Hz)

10W
Dimensions

13″ L x 4″ W x 4.5″ H / 33 x 10 x 11 cm