Corning ® PTFE-faced silicone septa for Corning vials, For 3.0-5.0 mL vials CLS139525SS Corning ® Silicone Septa, for use with GL25 Open Top PBT Screw Cap Z566136 Pigment-free, filler-free sleeve stopper septa, bottom I.D. × O.D. 4.2 mm × 10.7 mm Expand Z553905 Precision Seal ® rubber septa, white, 7 mm O.D. glass tubing Z764612