DURAN Wheaton Screw Cap (W240848)

DURAN Wheaton Screw Cap (W240848) PP Black, Open Top

The DURAN Wheaton Screw Cap (W240848) autoclavable PP Black Open Top closure designed for E-Z Ex-Traction vials with a 13-425 thread size. It features a PTFE/Silicone liner that ensures a tight, chemically inert seal suitable for high-precision analytical and pharmaceutical operations.

The DURAN Wheaton Screw Cap combines the durability of polypropylene with the dual-layer PTFE/Silicone liner system to provide excellent resistance against solvents and reagents. The PTFE surface offers complete chemical inertness, while the silicone backing delivers elastic compression for secure resealability. The open-top design allows the insertion of septa or direct sampling via needle access, making it ideal for chromatography and sterile workflows.

Engineered for high temperature and pressure tolerance, this cap maintains its shape and performance after autoclaving, offering reliable closure integrity for critical laboratory applications.

Product Highlights

• Type: Screw Cap for E-Z Ex-Traction Vials

• Material: Polypropylene (PP), Black

• Liner: PTFE/Silicone

• Design: Open Top

• Cap Size: 13-425

• Autoclavable: Yes

• Chemical Resistance: Excellent against acids, bases, and solvents

• Seal Integrity: Airtight and resealable

• Part Number: W240848

Applications

• Analytical and pharmaceutical laboratories

• Chromatography and sample preparation

• Chemical and biotechnology research

• Reagent storage and sterile sampling