Microscale sublimation adapter with vertically adjustable condenser tube that allows use with 3 mL, 5 mL, and 10 mL microscale vessels. Two-piece adapter features a #7 Ace-Thred at top of vacuum adapter that, with Nylon bushing and O-Ring, forms a compression seal with condenser tube, bottom 14/10 inner joint, and side hose connection. Complete item consists of vacuum adapter with Nylon bushing and FETFE O-Ring, and condenser tube. Hose connection is size A.