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Thermo Scientific™ 20mm Septa for Headspace Vials
Description
Thermo Scientific™ National 20mm Septa for Headspace Vials are designed for use with unlined 20mm crimp seals.
- PTFE/red rubber septa are resistant to coring and offer good resealing characteristics
- Gray butyl is an economical septum for low temperature applications
- PTFE/gray butyl septum provides increased chemical resistance
- PTFE/silicone septa offer excellent chemical resistance, resealing characteristics and low background. Use aluminum foil/silicone septa in extreme high temperature applications
- PurePak™ PTFE/silicone septa are packed in glass jars to maintain purity up to the point of use

Specifications
Specifications
Description | Aluminum Foil/White High Temp Silicone |
Diameter (Metric) Inner | 20 mm |
Material | Aluminum, Silicone |
Septum | Aluminum Foil/White High Temp Silicone |
Product Line | National |
Closure Size | 20 mm |
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