Specifically designed for the Fluval U3 filter, the U3 Poly-Carb Cartridge has two unique filtering sides that combine to provide thorough chemical filtration.

Features:

• Chemical filter media
• Polyester side filters out fine debris and contaminants
• Carbon side filters out harmful liquid substances, colourants and odours
• Suitable for freshwater, saltwater or reptile environments
• Convenient 2-pack format

Compatibility:

Manufacturers Code: A-491