There has been some discussion on the classified section about identifing the differences between these grills, I thought I would post the question here. How do you tell the difference between the 3? I pretty sure the 32 commercial looks just about like the 32 pass but with the grill bars part of the shell. 33-34 is deeper. Now here is the real question. Some had trim that goes around the bars, there are holes there to mount it. Does this signify a 33 or 34, or either? I have these 2 examples. The one that still has the bars is a 32 Comm. as far as I know. The other I was told was 34. It is deeper, this one had the bars cut out, but it has the holes for the trim. So who knows for sure?