Top critical review
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What happened Tetra!? Horrible quality, arrived no usable
on February 28, 2017
What happened? From making solid quality filter cartridges that typically lasts more than 2 months to poorly / cheaply made cartridges that literally came out of the box leaking carbon bits! See my photos of the new unused out-of-the-box filter with fibrous layer so thin the carbon bits are pouring out. I also included a comparison photo of my old filter, huge quality difference. Also, the fibrous material on recent purchase was so thin you can see light shinning through it. The carbon bits are leaking from the cartridge, into the box, making a huge mess and rendering the filter useless. To top it off, all three boxes (that's twelve filter cartridges) are of this abominably low quality. What happened?
Absolutely not recommended! Zero stars if possible.