CUSTOM ITEM: Caps, Screw Top, with White Silicone Rubber / Natural PTFE Pre-Slit Septa, fitted in "knurled", polypropylene, Red Caps. For use with 9-425mm thread, 12x32mm autosampler vials. BASIK Brand. 1000/CS. BULK PRICING.
Additional Info:
Pre‑slit septa are used to reduce needle penetration resistance, helping improve injection consistency in autosampler workflows.
The 9502S‑E‑35R‑M BASIK Screw Caps offer a cost‑effective pre‑slit design using silicone with natural (undyed) PTFE, providing the same inertness and durability as dyed PTFE without added colorants. This design supports easier needle entry and is commonly specified for systems such as Waters® Alliance and Acquity.
The red polypropylene cap includes a knurled exterior for secure handling and consistent torque during sealing. Designed for compatibility with 9‑425 thread, 12 × 32 mm autosampler vials, these caps are well suited for high‑throughput laboratories seeking economical solutions.
Key Features & Benefits
Pre‑slit septa ✅ Easier needle penetration
Economical BASIK design ✅ Cost-effective for high-volume use
Natural PTFE (undyed) ✅ Inert with no added dyes
Silicone/PTFE septa ✅ Reliable sealing performance
Red knurled cap ✅ Secure handling and identification
Typical Applications
HPLC and UHPLC analysis
LC‑MS and GC‑MS workflows
Waters® Alliance and Acquity systems
High-throughput routine testing
Important Notes
For 9‑425, 12 × 32 mm autosampler vials only
Suitable for multiple injections
Pre‑slit septa reduces penetration resistance
Case quantity format (1000/CS)
This and other custom items are Custom Ordered and require quotation
Custom Item Pricing Information