Labasics
Labasics Glass NMR Tube Washer, Borosilicate Glass NMR Tube Cleaner for 5 mm NMR Tube with 24/40 Joint and Hose Connection for Chemistry Laboratory Lab Supply
Kimble
Kimble 897300-0000 Borosilicate Glass Disposable Grade Flat Bottom NMR Tubes without Caps, 0.394" Diameter, 7" Length (Case of 50)
Kemtech
Kemtech XWE-5MM-7-50 Synthware NMR Tube with Cap, Economy Grade, Borosilicate 3.3 Tubing, 5 mm Diameter, 177.8 mm Length (Pack of 50)
Nanshin
XWE-5MM-7-50 NMR Tube with Cap, Economy Grade, Borosilicate 3.3 Tubing, 5 mm Diameter, 177.8 mm Length (Pack of 50)