Shop Red Screw Neck Cap and PTFE/Silicone Septum | 186002129 | Waters
VWR® Standard Standard Sealed and Septum Caps | VWR
100pcs Bottle Screw Cap Black Cover PTFE Silicone Septa for 20ml/30ml/40m 24-400 | eBay
AlteCap™ Septum Capper
Shop Light Blue Cap and Preslit PTFE/Silicone Septum for LCMS Certified Vials | 186005829 | Waters
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
Shop Black Cap and PTFE Septum | 186007198 | Waters