With a compression cap and Viton® O-ring to form a vacuum tight seal. To use it as a syringe port, simply replace the O-ring with Teflon -lined septum. Cap accommodates 5.0 – 7.5mm O.D. thermometer. Supplied with one Nylon cap and one Viton O-ring.
Made From G3.3 Borosilicate Glass
Annealing Point ——560℃
Linear Coefficient of Expansion—— 32×10-7/℃
Softening Point——820℃