Thanks for Flasking
Thanks for Flasking is a quest for level 10-45. It is step 12 of 33 in the Legion Alchemy storyline. The quest's turn-in marker is in Dalaran at 41.1, 34.0. It rewards 6,150 experience.
Description
Here is your flask, good as new. A fair trade for those potions.
Be a little more careful with your breakables next time!

