Condensers and Distillation Apparatuses
Condensers are on the top and bottom. They contain a double wall chamber that allows water or something else to be pumped through the side "nipples", which cools any gas going through to condense on the interior. The distillation apparatuses are more complicated, containing two condensers with bubble traps in between. All of them are high strength borosilicate ("pyrex") glass used in standard laboratory glassware.