Crimp seal with PTFE/butyl septa aluminum seal, open center 2021 - 05 - 27 Product # Description Add to Cart Z292036 Headspace vial, clear glass, beveled top, flat bottom, volume 20 mL, O.D. × H × I.D. 23 mm × 75 mm × 12.5 mm, for use with A.I., Dani Headspace, Dani Purge and Trap, Hewlett-Packard , PerkinElmer ®, Tekmar ®, Varian ® Genesis, pkg of 100 ea