Clear 19mm Vigreux Adapters

Clear glass vigreux adapters available in four different configurations with offset, downward-facing vigreux indents to increase turbulence and heat transfer: 19mm Large Outer (fits over a standard taper inner cone GonG), Long 19/19 (custom shortened 19mm inner cone), Short 19/19 (custom shortened 19mm inner cone), and the TM/RBT crossover (fits 16mm units on one end and 19/19 cone GonG on the other end for maximum adaptability).
*HEATER UNITS ARE FOR SCALE ONLY - NOT INCLUDED*
Approximate overall lengths are:
Large Outer: 5 inch
Long 19/19: 4.75 inch
Short 19/19: 2.75 inch
TM/RBT Crossover: 3.5 inch