Description:

The Livingstone Screw Cap 9-425 is engineered for secure sealing and optimized access to sample vials in professional laboratory environments. This ribbed open top cap features a 9mm red PTFE/white silicone septa that is pre-slit and 1mm thick—allowing easy penetration with a syringe needle while maintaining airtight conditions to preserve sample integrity.

Its 9-425 threading ensures compatibility with standard laboratory vials used in chromatography, sample preparation, and chemical analysis. The ribbed outer design enhances grip and facilitates easy opening or closing, even when wearing gloves. The red PTFE layer delivers chemical resistance, while the white silicone backing ensures consistent resealability.

Ideal for high-throughput testing environments and research settings, these caps provide reliability and versatility for repeated use in handling volatile, sensitive, or reactive samples. Packaged in sets of 100, they offer practical value for labs prioritizing cleanliness, efficiency, and precision.