Assembled screw cap with hole with PTFE/silicone septum black

Polypropylene caps are chemically inert and suitable for most chromatography applications.

Fisherbrand™ 8mm PP Screw Seal, Black, Center hole, 8-425 thread, Assembled septum

Sample Vial Caps & Septa, Red PTFE White Silicone Septa + Blue Screw Cap With Hole, For 2ml 9-425 Screw Top Vial, Caps and Septa

SC2 Open Black Septum Screw Cap — FireflySci Cuvette Shop

8mm PP Screw Seal, Black, Center hole, 8-425 thread, Assembled septum

Shimadzu PP Short Thread Cap red, 6.0 mm centre hole, Septum Silicone/PTFE - 961-10030-23 - £25.12

CANAL Accessory CAPK-47ピアス(両耳用) - SBINTERNATIONAL

Black Phenolic Screw Neck Cap, 144/pk - WAT072711

Closures, closures and septa

Septa, Blue PTFE/white silicone, pkg/100 blue PTFE/white silicone

Assembled screw cap with hole with PTFE/silicon - 나비엠알오

Vials, screw top with solid green Thermoset cap with PTFE liner