In a pro kitchen we would not use ready made sauce in a dish, we would season from scratch using chilli and spices. I do not know if that is what you want to do with this. Alternately you can buy cases of the standard size bottles from a cash and carry.
I'm no expert, but....I think that Tabasco sauce IS used in professional kitchens (just as Worcestershire sauce is) because it imparts a very distinctive flavour that's just not possible to create in a few minutes (or hours!). It's manufacture involves aging in barrels for about three years (just like Worcestershire sauce) and is definitely not a DIY job.
Tabasco sauce is used in home kitchens and small pro kitchens but the kitchen I work in does 1,000 meals a day . We would make at least 20 or 30 litres of chilli or curry for example, too much to use bottles sauce.