glass autosampler vial: Color: Clear and Amber Shape: Normal neck and screw neck(GPI 400, GPI 410, GPI 415, GPI 425 and other standards). Normal size: 1.5ml, 2ml, application: Use for HPLC,autosampler,chromatography,Aijiren water machine autosampler,chromatography,Aijiren water machine. Best price with comparable quality. Sample is free.