Tetra Whisper EX Carbon Filter Replacement Cartridges, Large 4 ct

The Tetra Carbon Filter Cartridges (Large, 4-Pack) help keep aquarium water crystal clear by effectively removing odors, discoloration, and impurities. These ready-to-use carbon inserts are designed for Tetra Whisper EX30, EX45, and EX70 filters, delivering reliable chemical filtration that improves water clarity and freshness. Ideal for both routine maintenance and after medication removal, these filters help create a cleaner, healthier environment for freshwater fish.