The SynthwareTM Distillation Drip Adapter manufactured by Kemtech America Inc. comes with an outer joint at top. Tapered drip tube can extend into open receivers.
Specification
Joint: ST/NS 19/22 Bend: 105 deg
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SynthwareTM Distillation Distribution Adapter With Vacuum Hose Connection, Joint: ST/NS 24/40, Kemtech America Inc. (CAT#: STEM-L-1829-LC)