Why Top Labs Trust Intellistone GC Septa
- High-heat ready: Red PTFE/silicone runs long at up to 400 °C; green fluoroelastomer stays stable to 350 °C.
- No leaks, clean baseline: Precision-moulded and plasma-cleaned to minimise carrier-gas loss and background.
- Fits your GC: Agilent 7890/8890, Shimadzu GC-2030, Thermo TRACE, and our GC Septa is the most split/splitless inlets.
- B2B logistics: MOQ 1 box, 10k+ in stock, global shipping in 7 days.
Upgrade Your GC Performance with Intellistone GC Septa Trusted by Global Labs
Our GC septa use PTFE-lined silicone (red) and fluoroelastomer FKM (green) for leak-tight, low-bleed sealing under demanding GC conditions. The red grade supports high-temperature runs up to 400 °C, and the green grade remains stable to 350 °C (temperature limits depend on inlet design and run time). Each septum typically endures 100+ injections with excellent resealability and no coring. Third-party compatible with most split/splitless inlets (e.g., Agilent 7890/8890, Shimadzu GC-2030, Thermo TRACE). OEM options include sizes, hardness, colours, and packaging; compliance files (ISO 9001, RoHS, USP <467>) are available on request
Product Options



Custom sizes (e.g., 11 mm, 9 mm, etc.)
Material blends tailored to specific workflows
OEM logo printing and packaging services
Choose Your Material
- Material Type: PTFE / Silicone
- Description: Dual-layer design, flexible and chemically inert.
- Typical Temp Limit: ~300°C
- Advantages: Good sealing, long life, low background interference.
- Common Color: Red / Blue
- Material Type: PTFE / Butyl
- Description: Butyl rubber core with PTFE coating.
- Typical Temp Limit: ~250°C
- Advantages: High gas tightness and lower cost.
- Common Color: Grey
- Material Type: Fluoroelastomer
- Description: High-performance elastomer for high-temperature and aggressive solvents.
- Typical Temp Limit: ~350°C
- Advantages: Excellent thermal stability, GC-MS friendly.
- Common Color: Green
- Material Type: Thermogreen / LB-2
- Description: Proprietary low-bleed septa for ultra-trace GC/MS analysis.
- Typical Temp Limit: >350°C
- Advantages: Ultra-low background, minimal ghost peaks.
- Common Color: Green
Why Intellistone GC Septa

Withstands extreme conditions: Red GC septa up to 400 °C, Green GC septa up to 350 °C.

Our GC Septas Prevents carrier gas loss and protects samples from contamination.

Designed to endure multiple punctures with minimal coring or particle shedding.

Our GC Septas Fit autosamplers and injection ports from Agilent, Shimadzu, Thermo Fisher, and more.

Custom diameters, materials, and private labeling available for distributors and labs.

We offer after-sales support and technical assistance for 24h
Why Choose Intellistone GC Septa
Our GC septa sample port seals combine exceptional thermal stability with reliable repeatable sealing performance, effectively preventing leaks and contamination to ensure accuracy and consistency with every injection.
Whether you’re conducting routine quality control analysis or tackling trace-level GC-MS testing, these septum rings made from high-purity silica gel/PTFE composite material or fluorinated rubber offer outstanding chemical resistance and extremely low background signals, effectively minimising interference.
Ideal for high-throughput laboratories and heat-sensitive environments, our gas chromatography septum rings are the perfect choice for laboratories seeking stability and data quality.


GC Septa Wholesale & OEM Solutions
For distributors and labs, we offer straightforward wholesale terms, private-label packaging with full-colour print and SKU barcodes, on-demand compliance files (ISO 9001, RoHS, USP <467>), and hands-on support from application chemists for method transfer and liner–septa matching.
Yes, they are designed for universal compatibility with Agilent, Shimadzu, Thermo Fisher, and other leading GC systems.
Absolutely. We offer OEM and ODM customization for specific diameters, materials, and private branding.
To prevent leaks and ghost peaks, we recommend regular inspection and replacing septa according to usage intensity and temperature.




