Has Gorton changed it vent sizing?

gfrbrookline

I have two gorton vents both labeled as size C that have been purchased in the past two years that the vent holes are very different in size. Is this just a quality control issue or have others noticed this as well. I am guessing the smaller one should be a 6 not a C.
cid:B443D435-DC04-42E4-BE9B-FC17736E51B0

cid:376E4B72-C997-4368-82B4-ADEFAA699372

Steamhead

I think you're right. It was probably a production mistake.

ethicalpaul

I seem to recall someone else seeing this. I also recall Gorton or MoM having switched back from a poor quality manufacturing partner but my memory is not to be trusted