Google McMaster Carr
Go to their HUGE catalog (they sell 480,000 items)
Search "Swivel Level" and it will take you to the first page for this "type" of leveling foot.... which is on their page 1350... then you can toggle through from there - and the ones that were posted look like the version on page 1354...
There are "hundreds" when you look at the SIZES --- which is why I didn't post a particular part number.
