Tetra whisper 12 pack large cartridges Unassembled

Whisper® Bio-Bag® Cartridges complete the Whisper® Power Filter package for a clean, easy-to-maintain aquarium. The Whisper® Bio-Bag® multi-packs come unassembled and offer economical pricing on larger quantities

Large- 20, 30,40 and 60 Power Filters and 20i & 40i Internals