Photo 1 of Zuqqony 8 Pack Small Filter Cartridges Compatible with Tetra Whisper Bio-Bag Filter Small Replacement Filter Cartridges Compatible with Tetra Whisper 3i Internal Filters

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Photo 1 of Zuqqony 8 Pack Small Filter Cartridges Compatible with Tetra Whisper Bio-Bag Filter Small Replacement Filter Cartridges Compatible with Tetra Whisper 3i Internal FiltersPhoto 2 of Zuqqony 8 Pack Small Filter Cartridges Compatible with Tetra Whisper Bio-Bag Filter Small Replacement Filter Cartridges Compatible with Tetra Whisper 3i Internal Filters