Product review (5 stars): I'll buy this one again
Arrived extremely quickly, and well packaged.  Unlike the Skuttle brand that I ususally buy, this after market brand:

1.  Comes with the foam adhesive gasketing strips already applied (generally an irritating job to do on the Skuttles).

2.  Is gasketed on ALL FOUR SIDES, not just the top and bottom like a Skuttle.

I don't know how to rate the filter media, but the productr seems well constructed and a little sturdier than the Skuttle, which sometimes folds during installation.  I suspect that the media is likewise good quality.

I plan to buy this next time.