Comparison : Item # QD-16-1, QD-16 Distillation Head, Short Path, Vigreux, Vacuum Jacketed
Item # QD-16-2, QD-16 Distillation Head, Short Path, Vigreux, Vacuum Jacketed
Item # QD-16-3, QD-16 Distillation Head, Short Path, Vigreux, Vacuum Jacketed
Item # QD-16-4, QD-16 Distillation Head, Short Path, Vigreux, Vacuum Jacketed
Item # QD-16-5, QD-16 Distillation Head, Short Path, Vigreux, Vacuum Jacketed