Product review (5 stars): Fits great!  Has charcoal filter on the back.
Fit like a charm.  Same flimsy construction as the original.  It's OEM, made by Broan.

FYI: This filter has the usual aluminum multi-layer screen on the front, and a charcoal filter on the back, which I wasn't expecting.  For now, I mounted it upside down so the charcoal gets scummed up first, then I'll be able to peel off the charcoal layer and go back to the aluminum later.