---
product_id: 315086819
title: "TetraWhisper Bio-Bag Filter Cartridges for Aquariums - Unassembled"
price: "€ 15.88"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/315086819-tetrawhisper-bio-bag-filter-cartridges-for-aquariums-unassembled
store_origin: NL
region: Netherlands
---

# TetraWhisper Bio-Bag Filter Cartridges for Aquariums - Unassembled

**Price:** € 15.88
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** TetraWhisper Bio-Bag Filter Cartridges for Aquariums - Unassembled
- **How much does it cost?** € 15.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/315086819-tetrawhisper-bio-bag-filter-cartridges-for-aquariums-unassembled)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

TetraWhisper Bio-Bag Filter Cartridges for Aquariums - Unassembled

## Images

![TetraWhisper Bio-Bag Filter Cartridges for Aquariums - Unassembled - Image 1](https://m.media-amazon.com/images/I/81i1PDKUCYL.jpg)

## Questions & Answers

**Q: does anyone have the exact measurements for the X large + Medium filters?  Thanks**
A: Must be a secret - I sure don't understand why the seller doesn't clearly list the size.Whisper Bio-Bag Filters are slightly tapered in the drawing. Width dimensions are at the top.Large: 4.6 wide x 6.4 tallMedium/"Junior":  3.0 wide x 5.2 tallSmall: 2.1 wide x 3.8 tallFound dimensions on the Tetra website but not sure the link address will work here. Here is the PDF file link:http://cdn.spectrumbrands.com/~/media/UPG/Tetra/Aquarium/Equipment/Replacement%20Filter%20Cartridges/WhisperCartridges.ashxIf this doesn't work go to their website at: www.tetra-fish.com and search for "Tetra Whisper Unassembled Bio-Bag Filter Cartridges"

**Q: Does it fit topfin power filter 10?**
A: I bought these about a month ago for my top fin 10 filter.  The cartridge in my top fin 10 is angled inward at the bottom whereas this filter cartridge is more of a rectangular shape.  Due to the shape it does not fit the top fin 10 slot.  However I kept my old cartridge frame and I'm using this product, everything works great.

**Q: What is the difference between the 26164 and  ATS26164? Both seem to be 12 large Whisper filter cartridges.**
A: Hi, I use the Medium size whisper filter cartridges...the difference between the 26164 & ATS26164 could be the fact that one is a pre-assembled cartridge and the other is not.  I buy the 12 pack of unassembled filters which are quite a bit cheaper and are the identical product.  It comes with the white filters, one plastic insert, and small charcoal bags that take a few minutes to assemble.  Hope this helps.

**Q: medium size it's for 10 galons?**
A: Hi Oscar, the medium size fits the Whisper PF10 and the Whisper 20 Power Filters.

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**Shop now:** [https://www.desertcart.nl/products/315086819-tetrawhisper-bio-bag-filter-cartridges-for-aquariums-unassembled](https://www.desertcart.nl/products/315086819-tetrawhisper-bio-bag-filter-cartridges-for-aquariums-unassembled)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-25*