Caps, Screw Top, with White Silicone Rubber / Natural PTFE Pre-Slit Septa, fitted in "knurled", polypropylene, Black Caps. For use with 9-425mm thread, 12x32mm autosampler vials. BASIK Brand. 1000/CS.
Additional Info:
The 9502S‑E‑35K‑M BASIK™ Screw Caps are selected for chromatography workflows requiring economical pre‑slit septa configurations for routine analytical testing. The fitted white silicone rubber/natural PTFE pre‑slit septa support easier needle penetration and dependable resealing performance during autosampler operation.
Manufactured with black knurled polypropylene caps and fitted white silicone/natural PTFE pre‑slit septa, these caps are designed for use with standard 9‑425 thread, 12 × 32 mm autosampler vials commonly used in HPLC and GC laboratories.
Economical Pre‑Slit Septa Configuration
White silicone rubber/natural PTFE pre‑slit septa
Cost‑effective cap configuration
Easier autosampler needle penetration
Designed for routine analytical workflows
✅ Economical pre‑slit autosampler vial sealing solution
Natural PTFE Septa
No dyes or color additives
Chemically inert septa material
Durable PTFE surface
Comparable inertness to red PTFE
✅ Reliable chemical compatibility
Standard 9‑425 Compatibility
Fits 9‑425 screw thread vials
Compatible with:
12 × 32 mm autosampler vials
Industry standard autosampler formats
✅ Broad autosampler compatibility
Instrument Compatibility
Normally recommended for systems comparable to:
Waters® Alliance
Waters® Acquity™
Suitable for autosamplers requiring pre‑slit septa
✅ Optimized for Waters‑style autosampler systems
Knurled Polypropylene Caps
Black polypropylene construction
Knurled exterior improves:
Grip
Installation
Removal
Secure sealing performance
✅ Convenient laboratory handling
Bulk Case Packaging
Supplied as 1000 caps per case
Suitable for high‑throughput laboratories
Helps reduce reordering frequency
✅ Efficient for routine analytical workflows
✅ Also available: Smaller Pack Quantity BASIK™ 9502S‑E‑35K Screw Caps