Three levels of ThermoScientific EPA Screw Vials are available to match your application requirements: Level 300, 200 and 100. Pricing and Availability. Fisherbrand™ Crimp-Top 2mL Autosampler Vial Aluminum Seals. Aluminum seals for use with Fisherbrand™ Crimp-Top 2mL Autosampler Vials (Cat. No. 03-391-5) Pricing and Availability.