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.
These Disposable Filter Cartridges fit Whisper® Power Filters:
Medium - PF10, 10i Internal and Reptofilter 90 GPH
Large - 20, 30,40 and 60 Power Filters and 20i & 40i Internals