The Fluval Poly/Carbon Cartridge features two unique filtering sides that combine to provide thorough and effective chemical filtration. The polyester filter pad side filters out fine debris and pollutants. The carbon side filters out harmful liquid substances, dyes, and odors.

• The polyester/carbon cartridge provides thorough and effective chemical filtration
• The polyester filter side filters out fine debris and pollutants
• The carbon side filters out harmful liquid substances, dyes, and odors
• For freshwater, marine, or reptile environments
• Contains 2 Poly/Carbon cartridges
• For the Fluval U3 submersible filter

Tags: aquarium filter replacement