Plug. PEEK, 1/4-28, ARE-Applied Research brand. 5/PK.
Additional Info:
49025-01N-005 ARE‑Applied Research PEEK Plugs are precision‑engineered sealing components designed for HPLC mobile phase delivery caps and solvent bottle systems, ensuring unused ports remain tightly sealed and contamination‑free.
Manufactured from high‑performance PEEK (polyether ether ketone), these plugs offer excellent chemical resistance and mechanical durability, making them ideal for demanding chromatography and analytical laboratory environments.
The standard 1/4‑28 threaded design ensures compatibility with common solvent delivery caps and fluid handling systems used in HPLC, UHPLC, and LC‑MS workflows.
Also commonly used with Mobile Phase Delivery Cap 58820-06, these plugs effectively prevent air and oxygen from entering the bottle when a port is not in use.
✅ View economical 10‑pack options for higher volume savings and standardization
Sealing Performance – Maintain Solvent Integrity
Secure sealing of unused cap ports
Prevents air / oxygen ingress
Reduces solvent degradation and variability
Maintains consistent mobile phase composition
✅ Supports reliable and reproducible analytical results
PEEK Construction – High Chemical Compatibility
Made from PEEK (polyether ether ketone)
Resistant to a wide range of HPLC solvents
Strong, durable, and dimensionally stable
Suitable for repeated use
✅ Ideal for high‑purity chromatography applications
1/4‑28 Thread – Industry Standard Fit
Designed for 1/4‑28 threaded ports
Compatible with:
Mobile phase delivery caps (e.g., 58820-06)
Solvent system fittings
Laboratory fluid handling components
✅ Ensures secure integration with standard lab systems
Enhanced Handling Design
Knurled surface for easy finger tightening
Flat sides for wrench-assisted quarter turn
Prevents over‑tightening while ensuring proper seal
Easy removal even after extended use
✅ Designed for ease of use and dependable sealing
System Compatibility & Use
Commonly used with:
HPLC / UHPLC mobile phase delivery systems
LC‑MS solvent routing configurations
Multi‑port solvent cap assemblies
Degassing and tubing setups
Typical Applications
Sealing unused ports in solvent delivery caps
Maintaining inert solvent environments
Preventing contamination in mobile phase bottles
Laboratory fluid handling and system maintenance
Integrated into original equipment manufacturer (OEM) product designs
Important Usage Notes
Designed for 1/4‑28 threaded ports only
Tighten securely but avoid excessive torque
Inspect threads and sealing surfaces regularly
Use when ports are not actively in use