Tough call, the description doesn't say what the quantity is.
However, in other listings:
Pn 009-7109 is one quart
pn 009-7109-12 is a case of 12
But the shipping weight of 19 pounds and dimensions of 13.2 x 10 x 9.4 inches sure makes it sound like it's a case.
Even the Q&A says it's a case of 12.... and that's 2 years old.
Sometimes Amazon sells items at blow out prices. Or maybe the dimensions and weight are a mistake.
Might be worth the gamble. Worst case it's for 1 qt and you either keep it and pay too much for it, or return it for a refund and pay shipping.