Fluval U1 Underwater Filter provides efficient filtration to create superior aquarium water quality. The U1 Filter includes practical and versatile features, making it ideal for application in fresh, marine and reptile environments.

It has a convenient flip-top lid that allows quick and easy access to the filter cartridge for maintenance or replacement. In addition, the filter can be installed vertically against the aquarium wall to create currents or customized flow patterns; or it can be placed horizontally in shallow water tanks; or it can be used to create decorative features such as waterfalls.

The U1 Filter can be used as a primary filter in smaller aquariums or as a supplementary filter for larger aquariums. It is also ideal for tanks with low water levels. It includes an adjustable flow control and comes complete with 1 foam pad. It is suitable for aquariums up to 55 L (15 US gal).

Key Features :

• Provides efficient filtration to create superior aquarium water quality 
• Ideal for application in fresh, marine and reptile environments
• Also ideal for tanks with low water levels
• Perfect primary filter in smaller aquariums or supplementary filter for larger aquariums
• Can also be placed horizontally in shallow water tanks or to create decorative features such as waterfalls
• Convenient flip-top lid allows quick and easy access to the filter cartridge for maintenance or replacement
• Can be installed vertically against the aquarium wall to create currents or customized flow patterns
• Includes adjustable flow control and comes complete with 1 foam pad
• Suitable for aquariums up to 55 L (15 US gal)

Other sizes available : 

• A470 Fluval U2 Underwater Filter, for aquariums from 45 to 110 L (12 to 30 US gal)
• A475 Fluval U3 Underwater Filter, for aquariums from 90 to 150 L (24 to 40 US gal)
• A480 Fluval U4 Underwater Filter, for aquariums from 130 to 240 L (34 to 65 US gal)