This is the next to the largest of this set of Tramontina bowls I bought at Star Restaurant supply in about 1990. It is a 13 quart, 12 liter.
The biggest one is currently full of a bunch of cast-iron molds and a couple of other things. I think it is a 15 quart.
This one has a lot of utensil marks in the bottom from extra-large whisks, huge spoons and my favorite large Danish dough whisk which is so handy in mixing thicker doughs and batters.
This was also the bowl I used for my more energetic sourdough starters - before I got my extra-large Cambro containers.