Fluval U2 - Poly/Carbon Cartridge (2pk) The Fluval® Poly/Carbon Cartridge has two sides that combine to provide thorough and 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, colourants and odours. For freshwater, marine or reptile environments. Includes 2 poly/carbon cartridges. Fluval poly cartridges can be cleaned weekly but should be replaced often to ensure they continue to work effectively. For crystal clear water Replace every 6-8 weeks Removes harmful toxins 2 per pack Easy to replace Provides effective chemical filtration Custom fit for the Fluval U2 Filter Traps fine debris, improves water clarity and removes impurities Works in freshwater, marine or reptile environments We recommend using only genuine Fluval spare parts in their filters
