standard opening hplc sample vials ii-aijiren HPLC Vials 1.5mL Clear Screw Neck Vial, 9mm Thread,5.0 type: SC9191: White PTFE/Red Silicone Septa, 9mm Blue Short Screw PP Cap, 6mm Centre Hole: V923: 1.5mL Clear Screw Neck Vial w/Write-on Spot, 9mm Thread,5.0 type: SC91191: Pre-slit White PTFE/Red Silicone Septa, 9mm Blue Short Screw PP Cap, 6mm