CUSTOM ITEM: Caps, Screw Top, with Silicone Rubber / PTFE, low durometer Septa, bonded in "knurled", polypropylene, Yellow Caps. For use with 9-425 thread, 12x32mm autosampler vials. MICROSOLV Brand. BULK PRICING.
Additional Info:
Low durometer septa are formulated to reduce penetration resistance, helping improve autosampler needle entry and consistency during injections.
The 9502S‑12Y screw caps feature bonded silicone/PTFE septa with a softer formulation that allows easier needle penetration while maintaining reliable sealing. The bonded design helps prevent septa movement or dislodging during use, supporting consistent performance in HPLC, GC, and LC‑MS workflows.
The yellow polypropylene cap provides easy visual identification and includes a knurled exterior for secure handling and consistent torque when sealing standard 9‑425, 12 × 32 mm autosampler vials.
Key Features & Benefits
Low durometer septa ✅ Easier needle penetration
Bonded septa design ✅ Prevents dislodging during use
Silicone/PTFE construction ✅ Chemical resistance and sealing performance
Fits 12 × 32 mm autosampler vials ✅ Standard 9‑425 compatibility
Yellow knurled cap ✅ Easy identification and handling
Typical Applications
HPLC and UHPLC analysis
LC‑MS and GC‑MS workflows
Routine analytical laboratories
Methods requiring reduced needle penetration force
Important Notes
For 9‑425, 12 × 32 mm autosampler vials only
Suitable for multiple injections
Designed for improved penetration performance
This and other custom items are Custom Ordered and require quotation
Custom Item Pricing Information