5mm, 900MHz 7" SCREW CAP NMR TUBE, 1PKSupplied with open top cap & fluoropolymer/silicone septum for quick and clean access with a 22 gauge standard point needle.
Screw-Cap NMR Tube Cap with Septum, 12 PackCompatible with 5mm or 10mm Screw-Cap NMR Sample Tubes. Screw-Cap septum NMR tube caps offer both convenience of a screw cap and that of a septum where material can be removed.