Adapter, Thermometer (Cone Joint), 24/40
It has an angled 10/30 thermometer joint that can be used with numerous neck flasks. The perfectly ground, frosted joints offer a leak-proof method of joining all of the common taper glasses. The 10mm hose connection can hold a heavy wall vacuum tube, and the bottom male junction can suit a boiling flask with a 24/40 connecting adaptor. A glass thermometer with a 10/18 male joint can be fitted with a 10/30 taper out joint.