Home » News » HPLC Septa Cap » 9mm septa closure for wholesales Sigma screw neck vial caps with label for sale Sigma-Aijiren vials screw | Sigma-Aldrich Synonym: Certified CD Vial (Center Draining) Kit, 9 mm thread with cap/septa, unassembled 23187-U volume 1.2 mL, clear glass vial, thread for 9 mm, O.D. × H × I.D. 12 mm × 32 mm × 6 mm