TUBE,ADAPTER,THERM OPN 19/22, Case of 1

Details:

Adapter, PYREX brand, Adapter^ 19/22. 57 mm. This tube is also a replacement part for all Corning organic chemistry kits No. 6349-6949K. For rubber thermometer holder only, see No. 7715. One end with a [standard taper] ground joint and the other end tooled to accommodate a thermometer.