IST0815P 150µl Clear Glass Insert with Polymer feet, for 8-425 Vial 100 IST0815N 150µl Clear Glass Pulled Point Insert, without Polymer feet for 8-425 Vial 100 Part No Description Pcs/Pack IST0925N 250µl, Clear Glass Pulled Point, without Polymer feet for 9-425 Vial 100 IST0925NF 250µl, Clear Glass Insert, Flat Bottom, for 9-425 Vial 100