Middleby Inquiry

Hi,

I am looking at a Middleby 536 in another country and was told they offer 3 finger outer plates; a 4, 6, and blank.

I am having trouble getting info on the 4 and 6; mainly, how many holes there are or the approximate air flow percentage for those panels.

Would anyone here know anything about them? Also, are there other panels for this oven available?

Thanks