HPLC Autosampler Vials and Caps - SelectScience. Results 1 - 17 of 17 4 mL Screw Top Vials, Caps and Septa 4 mL screw top glass vials are a custom fit to Aijiren autosampler tray ( ) for use as sample Crimp Vial Headspace 20mm, 10ml (46x23mm) Aijiren Compatible. Subcategory1, HPLC & GC Autosampler Vials. Material, Glass, Clear.