Tetra Aquarium Fish Tank Filter Cartridges Whisper Bio-Bag Medium 1-Pack

Aquarium Fish Tank Filter Cartridges Tetra Whisper Disposable Assembled Bio-Bag

Whisper Bio Bag Disposable Filter Cartridges keep your aquarium water crystal clear, help remove odors and discoloration, and are economical and easy to use.
Whisper Filter Cartridges provide superior mechanical and chemical filtration for your aquarium.
Dense, dual-sided mesh catches debris and fish waste.