![Tetra Small Whisper Bio Bag 2 pk Tetra Small Whisper Bio Bag 2 pk](https://cdn11.bigcommerce.com/s-xfu1s3ki5p/images/stencil/500x659/products/16910/11045/98551_MAIN._AC_SL1500_V1607577157___15469.1639760255.jpg?c=1)
$3.99
$3.99
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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. Medium- PF10 Power Filter and 10i Internal.