Designed to virtually eliminate septa push-through while significantly enhancing productivity and flexibility, the National Target DP 9 mm C5000 series vial closure system for 12 x 32 mm vials are based on Thermo Fisher’s Advance Vial Closure System (AVCS). This design features a completely redesigned septa/cap interface that improves sealing, reduced evaporation, increased surface area available for injection and provides compatibility with a broader range of autosamplers than previous designs.