Standard Opening 18mm crimp gc vials for GC/MS Waters-Aijiren Home » News » 20ml crimp headpace vials » Standard Opening 18mm crimp gc vials for GC/MS Waters Silane-Treated Vials and Accessories - Silanized & Precleaned Vials, crimp top, silane-treated volume 2 mL, clear glass vial, O.D. × H × I.D. 12 mm × 32 mm × 6 mm, large opening, (6 mm), deactivation,