HPLC Micro-Inserts for 10-425 HPLC Vials There have five types of HPLC Micro Insert suitable for 10-425 hplc vials, I300 300uL with Flat Bottom, IV250 250uL Conical Micro-Insert, IP250 250uL Micro insert with Mandrel Interior & Polymer Feet, IV250-I(Economy), and IP250-I(Economy). Products 1.5 ML/2ML 8-425 Screw Neck Autosampler Vials ND8