2mL Autosampler Amber Vial Pre-slit Cap PTFE Silicone Septa Fit LC Sampler
(4) Pre-slit PTFE/Silicone Septa: 2ml Amber GC sample vials included blue ABS Screw Cap & Septa (Blue PTFE/White Silicone Liner). The preslit Septa can reduce flat pins curving and When collecting in large quantities, prevent negative pressure from forming in the sample bottle.