Fluval U4 Poly-Carb Cartridge, Replacement Underwater Aquarium Filter Media, 2-Pack, A492

Fluval U4 Poly-Carb Cartridge, Replacement Underwater Aquarium Filter Media, 2-Pack, A492

• Chemical filter media with two unique filtering sides that combine to provide thorough chemical filtration
• Polyester side filters out fine debris and contaminants
• Carbon side filters out harmful liquid substances, colorants and odors
• Suitable for freshwater, saltwater or reptile environments
• Includes two cartridges designed for use with the Fluvial U4 Underwater Filter

Fluval Poly/Carbon Cartridges features two sides for effective chemical filtration, the crucial second stage in the filtration process. The polyester filter pad side filters out fine debris and contaminants. The carbon side filters out harmful liquid substances, colorants and odors. The Fluval Poly/Carbon Cartridge works in part with the Fluval Filter Foam Pad to help keep your aquarium healthy and clean.