Waters 250ul HPLC vial inserts exporter-HPLC Vial Inserts1. 1.5ml/2ml Short screw Thread ND9, wide opening, 9mm thread hplc vial with matched PP Screw caps ND9, PTFE/silicone sept Application: Suitable for 8-425, 9mm, 10-425, 11mm snap vials Material