transparent EPA vials for lab use VWR-Voa Vial Supplier These 13mm vials are 4mL, 15x45mm vials with 13-425 thread finish. VWR autosampler vials, inserts, and closures. 8 mm Open Top Cap, 5,5mm Hole Transparent Polyethylene TEF transparent/ Nat. Rubber red-orange 60° 1 1000 548-0014 VWR ® STANDARD OPENING SCREW-THREAD VIAL CONVENIENCE KITS