P2V4 Neocision Distillation Head - USA MadeP2V4 Neocision Distillation Head P2V4 Short Path Distillation Head includes 4 sets of Vigreux with 24 40 Joints and GL 14 Barb Connections. Key Features: MADE IN THE USA Designed for 1 & 2 Liter Flasks Set of 4 Vigreux to allow for better seperation of fractions without packing material Larger vacuum jacket allows for less heat loss during distillations Larger vapor path to allow for gas vapor phase flow Increased internal diameter for faster, more