HPLC & GC Autosampler Vials. Grid List Snap Top Vial 11mm (12x32mm), with integrated microinsert (300ul). Part No. SNV12-09. View Details. HPLC and GC Vials, Caps, Septas and Inserts Guide (Bestsellers . Mar 22, 2020 Crimp Vials squeeze the septum between the rim of the glass vial and the crimped aluminum cap.