CUSTOM ITEM: Caps, Screw Top, with White Silicone Rubber / Natural PTFE Septa, fitted in "knurled", polypropylene, Red Caps. For use with 9-425mm thread, 12x32mm autosampler vials. BASIK Brand. BULK PRICING.

Additional Info:

Economical screw caps are commonly selected for routine analyses where reliable sealing performance is required without premium material cost.

The 9502S‑E‑15R BASIK Screw Caps provide a cost-effective solution using silicone/PTFE septa with natural (undyed) PTFE, offering the same inertness and durability as dyed PTFE without added colorants. This makes them suitable for standard HPLC, GC, and LC‑MS workflows where both performance and budget are important considerations.

The red polypropylene cap features a knurled exterior for secure handling and consistent sealing torque. Designed for compatibility with 9‑425 thread, 12 × 32 mm autosampler vials, these caps provide dependable fit and performance in routine laboratory environments.


Key Features & Benefits

  • Economical cap design ✅ Cost-effective for routine analysis

  • Natural PTFE (undyed) ✅ Inert with no added dyes

  • Silicone/PTFE septa ✅ Reliable sealing and chemical resistance

  • Fits 12 × 32 mm autosampler vials ✅ Standard 9‑425 compatibility

  • Red knurled cap ✅ Secure handling and identification


Typical Applications

  • Routine HPLC and UHPLC analysis

  • GC and LC‑MS workflows

  • General laboratory testing

  • High-volume analytical environments


Important Notes

  • For 9‑425, 12 × 32 mm autosampler vials only

  • Suitable for routine and multiple injection use

  • Bonded septa design

  • This and other custom items are Custom Ordered and require quotation


Additional Resources


Custom Item Pricing Information

Custom Order Item. Inquire for more information.

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