Free sample 2ml vials insert conical for hplc vials China. Aijiren 0.25mL Vial Inserts, Glass, Conical Base, 100 pcs/pk Aijiren 0.3mL Vial Insert, Glass, Flat Base Aijiren Polyspring Insert Clear Glass, 6mm Insert Diameter, Volume 200µl ALWS Application: Suitable for 8-425, 9mm, 10-425, 11mm snap vials