Mass purified water

 is a consumable item in Fallout: New Vegas. Perfect for long term survival plan in the wasteland.

Characteristics
This item is made at a campfire. It requires: Dirty Water (30), Glass pitcher (3), Pressure cooker (1), RadAway (1), and Surgical tubing (3).

It requires 50 survival skill to be crafted and will give you 30 purified waters.

Locations

 * You can buy about 20 bottles of Dirty Water each from Lacey at Mojave Outpost and Lupe at Grub n' Gulp Rest Stop.
 * Glass pitchers can be found in relatively large quantities in bars and restaurants though they need to be stolen as not in inventory of merchants, also remember to look behind and underneath the actual bar/"counter" in bars.
 * See Pressure cooker - Locations for Pressure cookers.
 * Surgical tubing can randomly be bought from normal merchants though they are obviously more commonly found on doctor's and in their medical rooms.