Stamnos

Stamnos is a lidded storage jar for liquids that was standardized during the red-figure period.  It has a short, stout neck, a wide, flat rim, and a straight body that tapers to a base. Horizontal handles are attached to the widest part of the jar.
http://ancienthistory.about.com/od/greekartarchaeology/tp/GreekPottery.htm