This grease-free two-piece sublimation apparatus has an upper liquid-cooled, flat-bottomed condenser and a lower vessel to contain the material to be sublimed. The two pieces are connected via an O-ring joint that makes for facile assembly and disassembly without the danger of contaminating your materials with grease. The 0-4 mm valve is grease-free and threaded. This unit comes complete with the cold finger, lower vessel, Viton O-ring, and stainless steel pinchclamp. Available in 10 and 40 mL capacity; volumes are the nominal volume below the bottom of the cold finger.