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Tetra Whisper Bio-Bag Filter Cartridges for Aquariums (Unassembled, Large, 8-Count)

  • mfr: AQ-66163
  • SKU: Tetra-951277
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Available options:

  • Free standard shipping

    *Orders placed before 3 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy

  • Free Local Pickup

    Please call for store stock availability.

    Requests made before 2:30 PM EST can be available for next-day pickup. Learn more

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Product highlights

  • Premium, ultra-activated carbon
  • 8-Count pack
  • 20i and 40i Compatible-in tank filter
  • Help keep aquarium water crystal clear and remove odors
  • Works in turtle tanks
  • Dense, dual-sided mesh catches debris and fish waste
  • Easy to assemble and replace
  • For best results, change Bio-Bag monthly
  • Three-stage filtration help keep the water crystal clear
  • Catches debris

Tetra Whisper Bio-Bag Filter Cartridges for Aquariums (Unassembled, Large, 8-Count)

The Tetra Whisper Bio-Bag Filter Cartridges complete the Whisper Power Filter package for a clean, easy-to-maintain aquarium. These multi-packs come unassembled and offer economical pricing on larger quantities.

Premium Technology

The Tetra Whisper Bio-Bag Disposable Filter Cartridges help keep aquarium water crystal clear and remove odors and discoloration. The dense, dual-sided mesh catches debris and fish waste. The Ultra-Activated carbon adsorbs odors. Each package is color-coded to make it simple to remember which size to purchase.

Keeps Water Crystal Clear

The three-stage filtration helps keep the water crystal clear. The cartridge contains Ultra-Activated carbon, which helps remove discoloration, contaminants, and odors.

Small Effort, Large Savings

Unassembled Bio-Bags are designed to provide the best value per cartridge and reduce plastic waste.

Safe for Fish

These Bio-Bags are tested and designed to be effective and safe for fish.


It is compatible with 20, 30,40, and 60 power filters and 20i and 40i internals.


Customer Questions
No Questions


Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges. 
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact [email protected] with your order number and a description of the damage. 
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at [email protected], or send us a message here.  
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead. 
If you ordered a kit, you must return all components and accessories to receive a full refund. 
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund. 
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900. 
Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

Shipping and Returns

Same Day Shipping

All orders placed by 4PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

Free Two-Day Shipping

We offer free expedited shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).

Flexible, Easy Returns

If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.

Ratings and reviews

Tetra Whisper Bio-Bag Filter Cartridges for Aquariums (Unassembled, Large, 8-Count)

Tetra Whisper Bio-Bag Filter Cartridges for Aquariums (Unassembled, Large, 8-Count) SKU: Tetra-951277

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