Caps, Screw Top, with Natural Silicone Rubber / PTFE Septa, fitted in knurled polypropylene, White Caps. For use with 24-414mm threaded EPA Style vials. BASIK Brand. 100/PK.
Additional Info:
Provide reliable sealing and consistent autosampler performance with screw top caps designed for EPA style vial workflows. Constructed from durable knurled polypropylene, these caps ensure secure grip and easy handling in both manual and automated laboratory environments. The silicone rubber / PTFE septa combination delivers an effective balance of flexibility, durability, and chemical resistance for a wide range of analytical and storage applications.
97040-05C-W caps are equipped with EPA quality silicone rubber / PTFE septa, making them suitable for both EPA testing and long‑term storage. The 12.5 mm center hole allows accurate and repeatable needle entry, supporting consistent autosampler performance. The PTFE layer provides excellent chemical inertness, while the silicone backing maintains resealability during repeated injections.
These caps are compatible with 30 mL, 40 mL, and 60 mL EPA style vials using ND24 (24‑414) threads, offering flexibility across multiple vial sizes. They are well suited for laboratories requiring dependable caps for both analytical injection and storage workflows.
Key Benefits
EPA quality septa suitable for testing and storage
Silicone / PTFE septa provides chemical resistance and resealability
12.5 mm opening allows consistent autosampler needle access
Knurled cap design improves grip and handling
Compatible with multiple EPA vial sizes (30, 40, 60 mL)
Versatile for both analytical and storage applications
Typical Applications
EPA and environmental testing
LC‑MS and HPLC sample preparation
Autosampler vial applications
Sample storage and transport
Routine laboratory workflows
Specifications
Cap Type: Screw Top
Thread Size: ND24 (24‑414)
Cap Material: Polypropylene (knurled, white)
Septa: Natural silicone rubber / PTFE
Opening Size: 12.5 mm center hole
Pack Size: 100 caps
Compatibility
Designed for ND24 (24‑414) EPA style vials
Compatible with 30 mL, 40 mL, and 60 mL EPA vials
Suitable for autosampler and storage applications
Performance and Design Notes
PTFE layer minimizes analyte interaction
Silicone backing allows resealing after injection
Designed for consistent injection performance
Supports both analytical use and storage workflows
Important Notes
Suitable for EPA testing and long‑term storage
Designed for vials with center access (12.5 mm opening)
Ideal for laboratories requiring reliable, dual‑use caps