Amazon 40ml VOA vials PTFE silicone septa with cap. JG Finneran 9A-103-3 Amber Borosilicate Glass Precleaned and Certified VOA Vial with White Polypropylene Open Top Closure and 0.125" PTFE/Silicone Septa, 24-414mm Cap Size, 40mL Capacity (Pack of 100): Science Lab Vials: Amazon.com: Industrial & Scientific