Fluval U2 Filter Foam Pad

Achieve crystal-clear, healthy water with the Fluval Bio-Foam U2 pads. This 2-unit pack is designed for the Fluval U2 Underwater Filter, delivering both mechanical filtration to trap debris and biological filtration to support beneficial bacteria. The dual-function pad helps reduce odors and maintain stable conditions for fish and plants, promoting a thriving freshwater or saltwater aquarium. For optimal performance, replace pads every 6 to 8 weeks, staggering replacements so the biological colony remains intact. These genuine Fluval media are sized to fit precisely within the U2 chamber, ensuring water flows through the foam for effective filtration and minimizing bypass. Whether you are an experienced aquarist or new to the hobby, these pads form the foundation of a healthy, clear, and flourishing aquatic environment.

Features

• Dual mechanical and biological filtration
• Improves water clarity and reduces odors
• Fits Fluval U2 Underwater Filter
• Replace every 6–8 weeks, one pad at a time
• Suitable for freshwater and saltwater tanks

Technical specifications

• Pack contents: 2 replacement pads
• Filtration type: Mechanical and Biological
• Pore structure: Dense foam with large pores
• Compatible with Fluval U2 Underwater Filter
• Replacement cycle: 6–8 weeks recommended
• For freshwater or saltwater aquariums

Replace media one by one every 6–8 weeks to preserve beneficial bacteria; never replace all cartridges at once.