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  • Tetra Whisper® Bio-Bag® Replacement Cartridges

    SKU: 04679825900


    • $2.98
      Unit price per 

    For the ultimate in convenience, choose Assembled Whisper® Bio-Bag® Cartridges. Packages are color-coded, making it easier than ever to remember which size to purchase.

    Small-3i Internal
    Medium- PF10 Power Filter, 10i Internal and Reptofilter 90 GPH
    Large- 20, 30,40 and 60 Power Filters and 20i & 40i Internals


    1. Rinse Bio-Bag• under cool tap water to remove carbon dust.
    2. Open lid and insert Bio-Bag into filter.
    3. Replace clogged Bio-Bag when there is reduced water flow out of the filter.

    For best results, change Bio-Bag monthly or sooner, if required.