2ml snap autosampler vial for lab chromatography analysis equipped with PTFE/Silicone Septa. This 2ml snap vial septa can total seal the vial. Aijiren has continued to improve septa to actively reduce leaching, chipping, blocking, pushing, stiffening, and adsorption issues. Rated 4.5 /5 based on 371 customer reviews. 1.5ml snap vial 1.5ml vial