Septa for 8-425 Screw Thread Caps are constructed of PTFE, PTFE/rubber, or PTFE/silicone to suit a variety of applications.

Can be used with screw caps

13mm Septa for use with threaded caps Snap/Crimp Caps are available in PTFE/ Red Rubber, PTFE/Silicone or Red PTFE/White Silicone/Red PTFE.

Combine the inertness of a PTFE coating with the resealability of silicone Thermo Scientific™ PTFE/Silicone Discs.

Discs that combine the inertness of PTFE with the resealability of silicone

For a highly inert and unreactive seal use Thermo Scientific™ PTFE/Rubber Laminated Discs.

Red PTFE

9mm Septa are available in PTFE/ Red Rubber, PTFE/Silicone or Red PTFE/White Silicone/Red PTFE to suit a variety of applications.

Parts and replacement septa

Thermo Scientific™ National Target 10mm Septa are designed for use with 10-425 threaded caps.

Fits screw caps with 13–425 GPI thread

For 2mL Big Mouth Step Vials.