Those are not Stout Tanks and Kettles fermenters.
These are homebrewhouse-discount fermenters, made by a different manufacturer and sold by a different person out of PA.
There are two significant differences that I know of.
First, the thermometer sits directly in the beer, along with a porous brass nut, SS washer, and a gasket. It has no thermowell.
This is not a sanitary method - why upgrade to tri clamp valves, etc. and then do that? Might as well stick with plastic, IMO.
Second, I can comment on the fact that by reverse engineering the shipping charges, these are much, much lighter than Stout Tanks and Kettles fermenters. The shipping weight is 25 pounds for the homebrewhouse-discount fermenter. The shipping weight of a Stout Tanks and Kettles fermenter is 65 pounds. The actual weight of a Stout Conical is about 50 pounds. So the build of these must be very different, with much lighter gauge materials.
I haven't actually seen one, and the photo in his ad is exactly the same photo as his 7.2 gallon fermenters.
John/Stout Tanks and Kettles