CUSTOM ITEM: Caps, Screw Top, with Soft-Guard, White Silicone Rubber / Red PTFE Pre-Slit (X Shape) Septa, fitted in "knurled", polypropylene, Purple Caps. For use with 9-425mm thread, 12x32mm autosampler vials. Soft-Guard Brand. BULK PRICING.
Additional Info:
Cross pre‑slit septa designs provide a larger needle strike zone, helping guide needle entry and reduce insertion resistance in autosampler workflows.
The 9502S‑E‑3XP Soft‑Guard™ Screw Caps feature a bonded X‑slit silicone/PTFE septum that allows easier penetration while maintaining reliable sealing for repeated injections. The Soft‑Guard™ formulation reduces coring and supports improved autosampler performance across HPLC, GC, LC‑MS, and GC‑MS applications.
The bonded septa design prevents liners from dislodging or falling into vials during use. A purple knurled polypropylene cap ensures secure grip, easy identification, and consistent torque when sealing standard 9‑425, 12 × 32 mm autosampler vials.
Key Features & Benefits
X‑shape pre‑slit septa ✅ Larger target area for easier needle alignment
Soft‑Guard™ silicone formulation ✅ Reduced coring, consistent performance
Bonded PTFE/silicone septa ✅ Prevents septa movement or loss
Fits 12 × 32 mm autosampler vials ✅ Standard 9‑425 compatibility
Purple knurled cap ✅ Easy identification and secure handling
Typical Applications
HPLC and UHPLC analysis
LC‑MS and GC‑MS workflows
Methods requiring improved needle targeting
Analytical and research laboratories
Important Notes
For 9‑425, 12 × 32 mm autosampler vials only
X‑slit design improves penetration but may reseal less than single‑slit septa
Bonded septa—no assembly required
Intended for specialized applications
This and other custom items are Custom Ordered and require quotation
Custom Item Pricing Information