Vial, clear, borosilicate glass, certified. Available in three sizes with the standard 0.125in thick, I-Chem blue, PTFE/Silicone septa in an open top 24-414 Polypropylene cap. The I-Chem molded-in septa retainer ring holds the septa securely in place without bonding to the cap, so septa can be removed and replaced as needed. 40mL, 200 series vials are available in a convenient, 144 piece bulk pack. I-Chem certified 200 and 300 series vials are guaranteed to meet the EPA's performance based specifications for volatile organic analysis. 40mL and 60mL vials are also TOC certified < 600ppb. Capacity: 40mL. Closure Size: 24-414. Series: 300. Closure Material: Polypropylene. Dimension: 1.06 O.D. x 2.25in H. Cap Type: Open top. I-Chem Brand #: S336-0040.