India High quality manufacturing 2ml hplc vials with ptfe VWR Autosampler Vials, Inserts and Closures. 10mm Open Top Cap, 8.5mm hole Black Polypropylene Blue PTFE/White Silicone, Pre-slit 55 1.5 82028-436 100 Black Polypropylene Red PTFE/White Silicone 50 1.3 82028-434 100 VWR ® 10mm Wide Opening Screw Thread Vials Convenience Kits .