40 Ml Glass Vials at aijiren. 20 mL,30 mL,40 mL and 60 mL vials in clear and aijiren glass of 1st hydrol. class glass Bonded Silicone/PTFE closures,thread design 24-414,open/closed top,most frequently used in coination with the 40 mL vial Vial container available for 20 mL,30 mL and 40 mL vials.