Or maybe, it's like men's razors and women's razors. The same exact product is sold in two different packages. The "Vagex" cost 65 cents while the "Anex" cost 95 cents and came in a different box, but was the exact same tool. So he bought a "Vagex"
I bet the toolbox owner bought it without knowing what it was. He probably thought when he first saw it: "This will work great for cleaning out the inside of engine coolant hoses!"