• Receiver adapter made of high quality, heavy duty 3.3 borosilicate glass
• Adapter features vacuum connection and screw thread
• Socket size: 14/23, Cone Size: 14/23
• Vacuum connection has an inner diameter of 4mm and an outer diameter of 7mm

Receiver adapter made of high quality borosilicate glass with vacuum connection and screw thread. 14/23 socket size, 14/23 cone size. Vacuum connection has an inner diameter of 4mm and an outer diameter of 7mm. Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point -515°C | Annealing Point 565°C | Softening Point 820°C.