These precision screw-cap NMR tubes are manufactured from the highest quality borosilicate glass and are ideal for sample degasification.

• Maintains a vacuum quality of >10 to 4 torr
• Ideal for sample degasification
• Each screw-cap tube comes with one PTFE/silicone septum

PTFE/ rubber septums are inert to most solvents and many corrosive materials but not recommended for multiple punctures.

PTFE/silicone septums are inert to most organic solvents and compounds but not recommended for strongly corrosive materials. The septum remains reliable after multiple punctures.