Tri Clamp ("shotgun" or "tube-in-tube") condensers function as heat exchangers. Coolant enters via an FNPT port circulating & cooling the metal tubing through which your vapor or solvent passes vertically. The gas condenses into a liquid and runs back down under the influence of gravity where it is reclaimed and placed back into a collection tank. Glacier Tanks' tri clamp condensers feature baffles which specifically disperse coolant throughout the interior of the spool offering higher heat exchange efficiency. In the distilling industry these condensers are generally called dephlegmator or refulx condensers.