Sigma crimp top vials for wholesales-Aijiren Sample Vials Vials, crimp top, for Thin Seal – Sigma-Aldrich. Vials, crimp top, for Thin Seal volume 20 mL, clear glass vial (flat top), closure type, crimp top vial, O.D. × H 22.5 mm × 75.5 mm, pkg of 100 ea; Vials, 2 mL crimp top, clear glass, 12 x 32 mm – Sigma-Aldrich