467-26167 - Tetra Whisper Bio Bag Cartridge Unassembled XL 4 pk

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. XL Catridges fit Whisper 4 and 5, TetraTec 300 and 500.