Caps (PE) for 5mm NMR-Tubes, blue, 100 pcs Back Catalog number: 1188 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 1190 Caps (PE) for 5mm NMR-Tubes, orange, 100 pcs Price on request 1192 Caps (PE) for 5mm NMR-Tubes, red, 100 pcs Price on request 1191 Caps (PE) for 5mm NMR-Tubes, purple, 100 pcs Price on request