Chromatography Vial Inserts | VWR. Description: Vial insert, VWR®, Glass, Clear glass, conical, without metal spring, 0,10 ml, Ø×H: 4×27,5 mm Micro-insert for 4 ml screw neck vials Catalog Number: (548-0093) Supplier: VWR Collection Description: Vial insert, VWR®, Glass, Clear glass, 15 mm . Certified 2ml HPLC vial insert conical supplier