Description
8-425mm Black Cap with Red PTFE/White Silicone Pre-Slit Septa, 100-pack
This 8-425 threaded black cap features a high-quality red PTFE/white silicone septum with pre-slit design, engineered for autosampler vials in HPLC, GC, and LC-MS applications. The pre-slit configuration enables smooth needle penetration while maintaining sample integrity, making it ideal for high-throughput analytical laboratories requiring reliable and consistent sealing performance.
- Thread size: 8-425mm standard screw thread for universal autosampler vial compatibility
- Septum material: Red PTFE/White Silicone composite for excellent chemical resistance and resealing properties
- Pre-slit design: Facilitates easy needle insertion and reduces coring during automated sampling
- Cap color: Black polypropylene construction for durability and sample identification
- Quantity: 100 caps per package for laboratory convenience and inventory efficiency
- SKU: C4013-77ANL (Alternate for 08 15 1449)





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