Low volume IP250 micro insert 10-425 HPLC vials Waters Chromatography Vials, Caps, Septa & Inserts, Tubes, Crimper, 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