Material: USP Type 1, Class A, 33 Borosilicate Glass Volume: 2ml (standard volume) 1.5ml(actual volume) Application: HPLC and GC system vial 2ml | Sigma-Aldrich red PTFE/white silicone, diam. × thickness 8 mm × 0.060 in., for use with Screw Top vial, 2mL, 4