Simport T347AQX - X-Septum Screw Caps for Microcentrifuge Tubes / Qty 250 – Distribution LabSphere inc.
JG Finneran 5240-11 Snap Top Cap with PTFE/Butyl Rubber Septum, 11mm Cap Size, Clear (Case of 1000): Science Lab Cap Plugs: Amazon.com: Industrial & Scientific
Simport T347AQX Polypropylene Septum Screw Cap for Microcentrifuge Tube (Pack of 250): Science Lab Cap Plugs: Amazon.com: Industrial & Scientific
Assembled screw cap with hole with PTFE/silicone septum black polypropylene hole cap, thread for 13-425, red PTFE/silicone, septum thickness 1.5 mm, for use with 4 mL vial, pkg of 100 ea
Septum caps, Nalgene® | VWR
TriForest Enterprises Caps - Septum DuoCAP Cap, 38/430 Media Bottle Ne — Grayline Medical