• Tetra 26161 Whisper Bio-Bag

    • REPLACEMENT CARBON FILTER Keeps aquarium water crystal clear – removes odors and discoloration
    • CATCHES DEBRIS Dense dual-sided mesh filters debris and fish waste
    • FITS TETRA WHISPER WATER FILTERS Color coded to make it simple to remember which replacement cartridge size to purchase
    • CONVENIENT Replacement filter cartridges are fully assembled and ready to use
    • USAGE Change monthly or sooner if needed
    • Age Range Description: All Ranges
    • Included Components: Whisper Assembled Bio-Bag Cartridge Medium 

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