Bonded Cap: Septa Glued on Cap, So septa not Fall from Cap. Autosampler Vials: 2ml Chromatography vial 12X32mm, 4ml vial 15X45mm. GC Vials Screw: Screw Headspace vial, 6-20mL with Magnetic Screw Cap. GC Vials Crimp: Crimp Headspace Vial, 6-20ml with Aluminum Crimp or Magnetic. Sample Vials: 20-60ml EPA. VOA Vials, 24-400 Neck.