Sample Handling - Vials, Caps, Inserts, 96 Well Plates, Sealing Mats Perkin Elmer autosamplers use a variety of screw and/or crimp. HPLC and GC Vials, Caps, Septas and Inserts Guide (Bestsellers Mar 22, 2020 Polypropylene Vials with Screw or Snap Neck ; polypropylene-snap-cap-micro-vial, snap-top-cap, polypropylene-snap-cap-vial ;