This zero holdup, no-splash, short path still is for small quantity distillations with the accuracy of larger stills

Sensitivity is improved by a low mass immersion stem and joint combined with an optimized bulb volume. Joints on the head and "cow" receiver are a [ST] 14/20. The flask is 10mL, with a [ST] 14/20 center and a [ST] 10/18 side neck. Use with 5/16-inch I.D. tubing. This apparatus was designed by Dr. Raymond Firestone.

The design eliminates even the minimal holdup experienced with original short path stills by further reducing wetted surfaces and travel paths. An added feature is the splash guard, located at the bottom of the head/flask joint, which provides protection against splash up. The head has a cooling jacket.