Vial inserts for short thread vials and closures for HPLC, VWR®. Supplier: VWR Collection. Description: Vial insert, VWR®, Borosilicate glass, Micro-insert with assembled plastic spring, suitable for 2 ml HPLC/GC vials (ND9/ND11), 0,10 ml, Ø×H: 6×28 mm. New Product.