Caps, Screw Top, with White Silicone Rubber / Natural PTFE Pre-Slit Septa, fitted in "knurled", polypropylene, Blue Caps. For use with 9-425mm thread, 12x32mm autosampler vials. BASIK Brand. 100/PK.
Additional Info:
The 9502S‑E‑35B screw caps are our lowest‑cost option with pre‑slit septa for autosampler vials, offering dependable injection performance for routine laboratory applications where controlled costs and consistent autosampler function are required.
These caps feature white silicone rubber septa faced with natural PTFE, providing chemical inertness and durability equivalent to red PTFE, without added pigments. The pre‑slit septa design supports consistent needle penetration and resealing, reducing injection force and septa deformation during repeated use.
Optimized for standard 9‑425 vial configurations, these caps are commonly recommended for Waters® Alliance and Acquity™ instruments, as well as other autosamplers that benefit from pre‑slit septa performance.
This 100‑count pack is well suited for routine HPLC and GC laboratories seeking an economical pre‑slit septa solution.