Home » News » Vials Septa » 9-425 hplc vial septa with PP caps Australia pp septa cap for screw vials-Aijiren HPLC Vials Aijiren pp caps for 2ml 9-425 screw-top vials with caps lined with PTFE/Silicone septa are used in chromatography analysis, it can be used in HPLC/GC Application.