Amber Glass EPA VOA VOC TOC Vial 24-400 White Open Top PP Screw Cap with 22mm Natural PTFE/White Silicone 3.0mm thick Septa (EPA Quality). Ref.No. C0000336 C0000337 Description pre-assembled together. 100pcs/pk. 60mL 27.5x140mm Clear Glass EPA/TOC Vial 24-400 White Open Top PP Screw Cap . China EPA VOA Vial Manufacturers, Suppliers, Factory