Fluval Underwater Filters provide easy, convenient filtration, and have the capacity to independently filter aquariums up to 57 US gallons (215L). capacity. The Fluval “plus” underwater filters feature a clogging indicator allowing visual indication of when maintenance is required, and a cartridge design which prolongs service intervals.

Internal filter systems such as the Fluval Plus underwater units, offer the following application possibilities:

1. Vertical or horizontal filter placement.

2. Can be used to create waterfalls in turtle and reptile tanks.

3. Additional filtration for many different aquarium setups.

4. Useful for creating extra currents in reef tanks.

5. Driving Ultra-Violet sterilizers

6. Providing filtration when external filters cannot be installed.