A product of Pelvitron. Consists of enormous amounts of water compressed into a small bottle via extracting the "unnecessary" oxygen which is later automatically added during consumption.
A label on the can reads: "Pelvitron's Dehydrated water (H2) - All you add is air! Makes 10 gallons! Caution - Do not attempt to open or rupture container! Misuse could result in personal injury and/or flash flooding."
The product belonged to the standard set of supplies inside the survival kit in the escape pods on board the Arcada. One of these bottles was used by Roger Wilco in Space Quest 1 to survive and, according to one theory, to kill the Orat....
Technically, this is "deoxydized" water.