Fluval U1 Underwater internal filter.

For aquariums up to 55 L (12 UK gallons)

Top access - for easy maintenance

Adjustable flow control

Quiet running

Fluval U2 Underwater internal filter.

For aquariums 45-110 L (10-24 UK gallons)

3 stage filtration with BIOMAX for superior water quality

Adjustable 3-way flow

Simple to use

Fluval U3 Underwater internal filter.

For aquariums 90-150 L (20-33 UK gallons)

3 stage filtration with BIOMAX for superior water quality

Adjustable 3-way flow

Simple to use

Fluval U4 Underwater internal filter.

For aquariums 130-240 L (29-53 UK gallons)

3 stage filtration with BIOMAX for superior water quality

Adjustable 3-way flow

Simple to use