Wheaton® Halobutyl Rubber Flange Style Stoppers - Case of 1000

This case contains 1000 high-quality Wheaton® halobutyl rubber flange style stoppers designed for reliable vial closure applications. These gray stoppers feature a 20mm dimension and are specifically engineered for use with vials having 1.3 cm inner diameter and 2 cm outer diameter mouths.

Premium Vial Closure Solution

Manufactured by PANTek Technologies LLC, these non-sterile stoppers provide excellent sealing performance for various laboratory and industrial applications. The flange style design ensures secure closure and easy handling during vial preparation and storage processes.

Key Specifications

• Material: Halobutyl rubber for superior chemical resistance
• Color: Gray for easy identification
• Dimensions: 20mm size
• Compatibility: Designed for 1.3 cm I.D., 2 cm O.D. vial mouths
• Style: Flange design for secure sealing
• Sterility: Non-sterile format

Specialized Features

These stoppers include a 2-leg lyophilization design, making them suitable for freeze-drying applications where reliable sealing during the lyophilization process is essential. The halobutyl rubber construction offers excellent barrier properties against moisture and gases.

Ideal for laboratory settings, pharmaceutical applications, and research facilities requiring consistent and reliable vial closures. The bulk packaging of 1000 units per case ensures you have an ample supply for your operational needs.