10/30 Jt. for bleed adapter.
With internal #7 thread and bushing for thermometer or bleed tube.
With rubber thermometer adapter.
With standard outer joint.
With standard inner joint.
Used to avoid carry over of reactions which have a tendency to foam.
Used with vertical condensers, 10/18 Thermometer joint is on top (for use with a 25 mm immersion thermometer). Length between joints is 100 mm.
Inner joints, 200 mm Center to Center at a 75° angle, but with a sealed drip tip and a hose connection for evacuation.