300uL 9-425 Polypropylene Screw Top Autosampler Vials w/ Insert, 100/unit Screw closure; Polypropylene micro-vial material; 12 x 32mm; 9-425 Vials-97p.pdf - chromtech.net.au AMBER AUTO SAMPLER CHOMOTOGRAPHY VIALS, 9MM SCREW FINSH (2ML) 13mm Black polypropylene ring seal screw cap with silicon septa insert.