buy 40ml VOA vials Wheaton 24 Ml Vial at Thomas Scientific 20 mL, 30 mL, 40 mL and 60 mL vials in clear and amber glass of 1st hydrol. class glass Bonded Silicone/PTFE closures, thread design 24-414, open/closed top, most frequently used in combination with the 40 mL vial Vial container available for 20 mL, 30 mL and 40 mL vials.