Vault 13 Canteen

 is a miscellaneous item in Fallout: New Vegas.

Characteristics
The canteen will be able to store a certain amount of water from any water source. This will help with dehydration in Hardcore mode. It will give you more than one drink. If not in hardcore mode, and the canteen is in the player's inventory, you will periodically received a message at the top left corner; "You take a sip from your trusty Vault 13 canteen."