Septa and Seals for Headspace Vials, SUN SRI Seal, aluminium crimp, 20 mm, straight sided, 11 mm opening, —, —, 500 476, 14235-410, Case of 1,000. Crimp Top Vials, Caps & Septa - Innoteg Crimp Top Vials are one of several vial types used in autosamplers for automated sample injection into HPLC, GC, and MS analytical instruments.