Vial, crimp top, headspace, amber, graduation marks and write-on spot, flat bottom, certified, 20 mL, 23 x 75 mm, 100/pk 5190-2239 Vial, crimp top, headspace, amber, round bottom, certified, 20 mL, 23 x 75 mm, 100/pk Vial, crimp top, headspace, clear, flat bottom, 20 mL, 23 x 75 mm, 100/pk