Yes. It will fit all "22.5" Weber grills. Weber refers to their 22" charcoal grills as both 22" and 22.5" for the same grill depending on if the lid is measured or the bowl. See the two links for the same grill:
The tooling for the bowl is as big as a small house. Rest assured, they want to use the same bowl for as many versions as possible.
There is one Weber model called the Jumbo Joe sold exclusively by Walmart that does have a smaller bowl. I have adapted one of the sections to fit that one too! So you are good!
Original Kettle referred to as 22":
Same grill's cooking grate referred to as 22 1/2":