China 9-425 HPLC Red White 9mm PTFE Silicone Septa 9mm septa for 9-425 vials and cap, used for common auto samplers. Perfectly match famous brand instruments,like aijiren,aijiren Tech, aijiren Technology,Varian,etc.Description · 9mm Septa 1.0mm thick with Red PTFE & White Silicone, normal one with out pre-slit.·