This is my Schlenk line; there are many like it, but this one is mine. The double-manifold design allows my students and me to expose samples to either vacuum or inert gas (argon, in this case.) Every line has little tweaks and customizations made by the scientist using it, and is thus inevitably a work-in-progress. This particular line very much needs a full-time vacuum gauge as its next addition.
Decaseconds 