Tetra Bio-Bag Large Disposable Filter Cartridges

By Tetra
Rated 4.634 out of 5 stars

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$21.84Chewy Price
$22.98Chewy Price
$20.75Autoship Price
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About This Item


  • Convenient, easy-to-use, three-stage filtration cartridges are designed to keep your aquarium crystal clear.
  • Ultra-activated carbon works to absorb discoloration, contaminants and odors, keeping your fish tank in tip-top condition.
  • Double-sided mesh is dense to trap fish waste and debris.
  • Disposable Bio-Bags are available in an 8-count and 12-count option.
  • Compatible with Tetra Whisper 20i and PF10 Power Filters.

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Learn More About Tetra From Our Team of Experts

Compatible Products

Keep your system running smoothly with Tetra filters.

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Fish TypeMarine Fish, Tropical FreshwaterMarine Fish, Tropical FreshwaterGoldfish, Marine Fish, Marine InvertebrateMarine Fish, Tropical FreshwaterMarine Fish, Tropical Freshwater
Aquarium TypeSaltwater, FreshwaterSaltwater, FreshwaterSaltwaterSaltwater, FreshwaterFreshwater
MaterialSynthetic Fabric, MeshSynthetic Fabric, MeshPlasticSynthetic Fabric, Microfiber

Questions & Answers

14 Customer Questions

can this bag fit into 40 gallon internal filter by tetra?
Answer by ChewyOct 12, 2022
This Large filter is compatible with the Tetra Whisper 20, 30, 40 and 60 Power Filters and the Tetra Whisper 20i and 40i Internals.

What are the dimensions for these replacements?
Answer by ChewyApr 30, 2018
The dimensions for these Cartridges are 4.6 inches (length) by 6.4 inches (width).

Does it come with the carbon prepackaged or is it just the empty cartridge
Answer by ChewyApr 13, 2018
This product comes unassembled with empty cartridges. I've listed the following instructions below: 1. Detach clip from Aerobic Frame and slide the filter bag over the frame. 2. Add one packet of Ultra-activated carbon. 3. Press the Aerobic Frame flaps down over the top of the filter bag and press the clip down over the flaps. 4. Rinse under cool tap water to remove carbon dust. 5. Insert the Bio-Bag into filter slots.

how many plastic frames comes to each box of 12 filters
Answer by ChewyNov 01, 2019
The 8-count and 12-count disposable filter cartridges only comes with one Aerobic Frame with Clip.

ReviewsWrite a Review

Rated 4.634 out of 5 stars
153 Ratings
Would recommend to a friend

151 Customer Reviews

Rated 5 out of 5 stars
By ted on Nov 1, 2023

Aquarium filters

These are the best filters. Only ones I've used in many years. Prices have gone up drastically in the last 6 months. Chewy has at least kept them reasonable.

Rated 5 out of 5 stars
By Eileen on Sep 28, 2023

Excellent Value

Being able to purchase this as a 12 pack definitely makes for an excellent value. Note - they are not pre-made, so you have to add the carbon to the filter. It's easy to do, so no biggie.

Rated 5 out of 5 stars
By Shannon on Oct 6, 2023

I like them.

It was easy enough to rinse off the charcoal and put it in the bag. The internal frame and clip on top was nice and sturdy. It fit like a glove in the filter compartment.

Rated 5 out of 5 stars
By Alice on Oct 14, 2023
Top 500 Contributor

Large Disposable Fliter Caridges

This box of 12 filters is great for 20 gal. and up tanks, they can last up to a month so you don't run out for awhile and at a good price.

Rated 2 out of 5 stars
By Bob on Sep 23, 2023

getting cheaper in quality

The last few times I've ordered this product, several of the filter bag sides are either missing or so thin they tear open when trying to assemble making them unusable.

Rated 5 out of 5 stars
By Trent on Nov 12, 2023

Works beautifully

Easy to assemble & works beautifully. Saves money putting it together yourself. Shipped fast

Rated 4 out of 5 stars
By Smilesniki on Sep 25, 2023


These work great I just wish they sold the white filter sleeve separately. I kept all the frames so I only need the sleeves.

Rated 5 out of 5 stars
By Karen on Nov 25, 2023

Filters and food

They are the best prices here and delivery is so quick.

Rated 5 out of 5 stars
By dee on Aug 20, 2023

Repeat Purchase

Love these because, after the first purchase, you can get away with just buying a container of charcoal & refilling the pouch for a while.

Rated 5 out of 5 stars
By Dan on Nov 5, 2023

It is as it was described!

Product is exactly as described and shipping was spot on.