Tetra Bio-Bag Disposable Filter Cartridges - Small
Clear water made simple by Tetra Bio Bag. Use with the Tetra Whisper 3I in tank filter. They're tough on debris: Ultra-activated carbon absorbs odors and discoloration better than competing brands.
SMALL Bio Bag Filter Cartridge Fits - Whisper 3I in tank filter.
Dense, dual-sided mesh catches debris and fish waste.
More debris-trapping mesh than other products.
Convenient, pre-assembled Bio-Bags are ready to use. Simply open, rinse, and place in your Whisper Power Filter.
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