Infinite Flask is a magic water vessel.
The Infinite Flask first made its appearance when Ainz Ooal Gown took it out from his Item Box to produce clean water for Aura and Mare to drink after their mock battle with his summoned Primal Fire Elemental.
He also used it to clean himself after crushing Clementine to death in his arms.
Similar in appearance to a transparent glass, the vessel fills up with fresh water.
This flask can produce a constant flow of pure water.
- In the Anime, it resembles a pitcher.
- In the Manga, it didn't make an appearance.