This distillation adapter has a standard taper outer joint at the top, and inner joints on the bottom and sidearm. All joints are the same size. The inner joints are at a 75° angle to one another. In a typical use, one places a thermometer adapter at the top and a reflux condenser on the angled side joint.
These are available in 14/20, 19/22, 24/40, and 29/42 joint sizes.
For a similar distillation adapter with a top ground glass joint to accept jointed thermometers, see item # CG-1024.
For a similar distillation adapter with a rubber fitting to accept unjointed thermometers, see item # CG-1026.
For a similar distillation adapter with a Chem-Thread fitting to accept thermocouples, probes, tubes, and unjointed thermometers, see item # CG-1027.