31*5mm Polypropylene Micro Insert Suit for Screw Cap Vial CRX2001-5003 Micro-Insert 31*5mm, 300ul, clear, flat bottom, for 8-425 screw top glass vial, 100/pk 11mm Crimp Top Glass Tel: +8618057059123 Email:market@aijirenvial.com Home Products 1-4mL Autosampler Vials for HPLC, UPLC, GC 16mm, 25mm Test Tubes for Water Analysis