BioFoam and Grid Whisper 20

Choose Tetra for the Whisper® filter parts you need, like our Bio-Foam® and grid for Whisper® 20.
Product No. 25993-00


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BioFoam & Grid for the Whisper 20
BioFoam and Grid Whisper 20 is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Just what I needed! I couldn't get this product anywhere. It's just what I needed for my tank.
Date published: 2014-12-31
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I have a Whisper 3 filter system, which one of these will work for me?

Asked by: Hoosier Gal
Wow, that is an older model for sure! It would be the same as the current, Whisper 60, so you would need this one: BREX
Answered by: BREX
Date published: 2017-05-12

what is the dimensions of this filter?

Asked by: lisa1234
Lisa, We are not sure if you are asking for the dimension for the entire filter or the actual bio-foam. If you are looking for the bio-foam, we would be able to assist you with that directly and will email you for more information. Thank you, Christina
Answered by: Mini
Date published: 2017-03-03

I have an older second nature Whisper C Model. Can this biofilter be added to the old C model? By the picture the newer filter appear the same as the older. Have the actual dimensions been changed to fit these biofilter?

Asked by: Steve O
No, we haven't changed the dimensions on them, but yes, this bio foam can fit the old style Whisper C. It should fit just fine. BREX
Answered by: BREX
Date published: 2017-02-21


Hello I just bought a whisper 2-10 Internal Filter at Walmart. I am missing a part i.e the black bio grid that goes in front of the white pouch with the charcoal? Walmart refuses to provide same. What do I do?
Asked by: SAMY1234
Please give our Consumer Relations Department a call at 1-800-526-0650 Monday - Friday 7:30 AM-5:30 PM EST so that we may send you out your missing BioFoam and frame. Tetra2
Answered by: BREX
Date published: 2015-01-19
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