2ml Crimp Top HPLC Vials for Sale--Lab Vials Manufacturer. Fits most 2.0 mL, 11.6 x 32 mm vials (vials sold separately). Our screw-top 2ml HPLC vials and screw caps are the perfect fit for HPLC and GC instrument platforms across a wide variety of applications, including pharmaceutical, environmental, energy and fuels, forensics, materials science, biopharmaceutical, proteomics, and metabolomics.