854181-U. volume 20 mL, clear glass vial, O.D. × H × I.D. 22.5 mm × 75.5 mm × 12.5 mm, long neck. Pricing. Match Criteria: Product Name, Keyword. Headspace vials convenience kit (clear glass, bevel top, round bottom), pkg of 100. Headspace vials convenience kit (clear glass, bevel top, round bottom), pkg of 100.