Description
13-425mm Black Screw Cap with PTFE/Red Rubber Septum, 100-Pack
These 13-425mm black polypropylene screw caps feature a PTFE-faced red rubber septum, providing excellent chemical resistance and reliable sealing for sample storage and analysis applications. Ideal for use with standard 4mL screw thread vials, these caps are essential for chromatography sample preparation, environmental testing, pharmaceutical analysis, and general laboratory storage where contamination-free sealing is critical.
- Thread Size: 13-425mm standard screw thread configuration
- Septum Material: PTFE/Red Rubber composite for superior chemical inertness and resealability
- Cap Material: Black polypropylene for durability and easy sample identification
- Quantity: 100 caps per package for cost-effective laboratory use
- Applications: HPLC, GC, autosampler vials, sample storage, and environmental analysis
- SKU: C4015-30A
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