CUSTOM ITEM: Caps, Screw Top, with Soft-Guard, White Silicone Rubber / Red PTFE Pre-Slit (Y Shape) Septa, fitted in "knurled", polypropylene, Blue Caps. For use with 9-425mm thread, 12x32mm autosampler vials. Soft-Guard Brand. 100/PK
Additional Info:
Screw caps provide a secure, threaded sealing solution that ensures consistent performance in autosampler applications. The knurled polypropylene cap design allows for easy handling and reliable torque when sealing vials.
The 9502S‑E‑34B Soft‑Guard™ Caps feature a Y‑shape pre‑slit septa configuration that increases the available needle strike area, allowing easier penetration and improved alignment. Pre‑slit septa are commonly recommended for Waters® Alliance and Acquity systems, where reduced needle resistance improves reproducibility and instrument performance.
Soft‑Guard™ septa technology is engineered to provide easier needle penetration while delivering superior resealing compared to many conventional septa designs. This helps reduce missed injections, extend instrument uptime, and improve data consistency across HPLC, GC, LC‑MS, and GC‑MS workflows.
While the Y‑slit enhances penetration and targeting, it offers slightly reduced resealing compared to single‑slit septa. However, the Soft‑Guard™ construction helps offset this by improving overall reseal performance versus standard options.
Key Features & Benefits
Soft‑Guard™ septa ✅ Easier penetration with improved resealing
Y‑slit pre‑slit design ✅ Larger target area for needle alignment
Reduced injection resistance ✅ Improved autosampler performance
Reliable threaded closure ✅ Secure screw cap sealing
Knurled cap design ✅ Easy handling and consistent sealing torque
Broad compatibility ✅ Works with HPLC, GC, LC‑MS, and GC‑MS
Typical Applications
HPLC and UHPLC analysis
LC‑MS workflows
GC and GC‑MS applications
Waters® Alliance and Acquity systems
High‑throughput analytical laboratories
Important Notes
For 9‑425 thread, 12 × 32 mm autosampler vials only
Y‑slit design improves penetration but slightly reduces resealing vs single‑slit
Soft‑Guard™ septa improves resealing compared to standard designs
Designed for consistent injections and extended instrument uptime
Suitable for multiple injections
Custom Item Pricing Information