• Reduction adapter, made of high quality, borosilicate glass
• Socket size: 19/26
• Cone Size: 40/38
• Measures 4" tall and approximately 1.5" wide

Adapter receiver made of high quality, borosilicate glass. 19/26 socket size, 40/38 cone size. Measures 4" tall and is approximately 1.5" wide. Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point -515°C | Annealing Point 565°C | Softening Point 820°C