Common use 1.5mL 8-425 screw neck vial aijiren . Features. 1)9mm screw vials can be used on all common autosampler. 2)Standard narrow neck design for GC and HPLC. 3)9mm wider opening for easy puncture. 4)Clear, type 1 class A Quote Now Chromatography Vials, Caps, Septa & Inserts, Tubes, Crimper. aijiren - Autosampler Vials,Headspace