Dimensions of 42 Mercury oil bath air cleaner?

[signsup]

Bubba has a chrome hot rod air cleaner on his chrome Holly wannbe carb. I'm getting a correct carb from Charlie but when I look at sites for an air cleaner, I'm not seeing a real clear image of what I need. Does not need to be factory correct, just representative of the era. I'm trying to put a straight edge on the cowl to see how much clearance I have from the top of the carb to the underside of the hood, but if someone can share with me what the height of a stock air filter would be, it would get me close. A guy on FB has three for sale from 48 on that I would be interested in looking at once I know how tall they cannot exceed.
Thanks in advance. I'll hang up and listen