Beschrijving
Distillation reflux divider, hand regulated, socket size 29/32 for a condenser, cone size 29/32 for a distilling column, socket size 14,5/23 for a thermometer with ground joint (or similar), side PTFE valve (adjustable) for setting the return flow with cone size 14,5/23 for a collecting flask, borosilicate glass 3.3