Sample Vials. Autosampler Vials, Caps, Septa, and Inserts Vial Kit, Crimp Cap, 2 mL Clear + PTFE/Silicone, preSlit. AR0-9727-13. 20mL Clear, Crimp Neck Headspace Vial, ND20 Flat Bottom, 22.5 . Crimp Top 20mm Silver Aluminum Vial Cap – 100/pk, CV2009 · $3.35 ; Magnetic Crimp Top 20mm Blue Aluminum Vial Cap – 100/pk, CV2010 · $6.04.