20ml crimp headspace vials for Shimadzu 20mm Crimp-top Borosilicate Glass Headspace vial. US $5.10-$5.20. 3 YR. Add to Favorites. 10ml Clear Crimp top glass vial 20mm GC headspace Vial For Gas Chromatography. US $4.99-$5.20. 3 YR. Add to Favorites. 20ml Borosilicate Glass GC vial 20mm Crimp-top round bottom ISO9001 Chromatography Headspace vial