BioFoam and Grid Whisper 20i 40i

Easily find Whisper® filter parts with Tetra online, including the Bio-Foam® and grid for our Whisper® 20i and 40i.
Product No. 25997-00


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BioFoam & Grid for the Whisper 20i and 40i
BioFoam and Grid Whisper 20i 40i is rated 5.0 out of 5 by 2.
Rated 5 out of 5 by from Exact replacement They are the exact replacments for our red eared sliders tank. Original one had the carbon piece start to disintegrate and they dont sell them separately from the filter motor. They sell the carbon filters separate but not these, i find that odd
Date published: 2017-05-19
Rated 5 out of 5 by from Good replacement I bought this biofoam to replacement the one in the Repto-filter and it works great. Definitely will buy it again
Date published: 2015-08-14
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Would this fit the Tetra 26038 ReptoFilter for Terrariums (50 Gallons - 125 GPH)?

Asked by: NYC Turtles
Yes, it sure will! BREX
Answered by: BREX
Date published: 2017-10-11

I am look to replace the BioFoam filter product #26207 on my older Whisper power filter 20-40 product #25778. I haven't found any biofoam filters with the product #26207, would this one work on it?

Asked by: Awagn026
No, you need this one: BREX
Answered by: BREX
Date published: 2017-07-18

Will this fit the large filter?

Asked by: Amers
This fits both the 20i and the 40i. I am not sure which filter you are referring to by "large filter". The 40i is our largest internal filter, however. BREX
Answered by: BREX
Date published: 2017-03-27

Would you please give me the dimensions of the biofoam and grids for the internal 20-40i, 20, 30, 40 and 60? Thank you!

Asked by: Cmerrell
The 20-40i bio grid is ~ 6.25x 4.5 x 0.5” The 20, 30, and 40 reticulated foam is ~ 3.75 x 5.75 x 0.6” The Whisper 60 has two foam pads. the same size as the 20, 30, and 40. BREX
Answered by: BREX
Date published: 2016-06-14

How often should the bio foam grid be rep!aced and can the foam part only be replaced?

Asked by: Milla
Only when it is falling apart basically, so pretty rarely, and no, it only comes with the grid as well. BREX
Answered by: BREX
Date published: 2016-06-03
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