Vacuum jacketed Vigreux distillation head having a sealed on condenser, braced for strength. The top outer joint is for a 1″ immersion 10/18 or 10/30 thermometer. Vacuum adapter has an inner joint and a sealed in drip tip. Condenser length is 100mm on the 14/20 size and 200mm on the 24/40 and 20/42 sizes.