Coaxial Inserts for NMR Sample Tube for Bruker Spectrometers
4mm TUBE W/50mm STEM. Includes one S-5-400-7 NMR tube to be used with the Coaxial Insert. 

50mm Stem OD is 2mm, Stem Sample Capacity is 100μL

Please note: we cannot guarantee the fit of any NMR tube other than the one that is provided with the insert.

Coaxial Inserts for NMR Sample Tube for Bruker Spectrometers
4mm Quartz Tube W/50mm STEM. Includes one S-5-400-7 NMR tube to be used with the Coaxial Insert. 

50mm Stem OD is 3mm, Stem Sample Capacity is 175μL

Please note: we cannot guarantee the fit of any NMR tube other than the one that is provided with the insert.