9-425 Screw Thread Autosampler HPLC Vial Caps, 9mm, Pre-slit 2mL 9-425 Screw Caps Specifications: Septum: Red PTFE / White Silicone, White PTFE / Red Silicone Part Number: LBSV102CSS, LBSV002CRS Diameter: 9 ± 0.05 mm Thickness: 1 ± 0.05 mm Shore Hardness: 45° Series: Autosampler Vial Cap Top/Cap Type: 9-425 Screw Top Material: PP