DURAN Plastic Stopper NS 12/21

DURAN Plastic Stopper NS 12/21

The DURAN Plastic Stopper NS 12/21 (Catalog No. 292050407) offers secure and reusable sealing for DURAN volumetric flasks and compatible glassware. It is manufactured from high-quality polyethylene (PE), ensuring outstanding flexibility, chemical resistance, and mechanical strength. Moreover, its standard-taper joint provides a perfect fit, minimizing the risk of leakage or contamination during laboratory operations.

The color-coded design simplifies identification of flask sizes or contents, which enhances workflow efficiency and minimizes errors. In addition, the stopper’s smooth surface ensures easy insertion and removal without scratching or damaging glass joints. Therefore, this stopper combines functionality, convenience, and reliability in everyday laboratory use.

Because polyethylene is chemically inert, lightweight, and shatterproof, it serves as a durable and cost-effective alternative to glass fittings. Consequently, the stopper maintains consistent sealing performance even after repeated use. Overall, the DURAN Plastic Stopper NS 12/21 combines durability, compatibility, and ease of handling to ensure professional laboratory performance.

Specifications

• Brand: DURAN

• Material: Polyethylene (PE)

• Size: NS 12/21

• Type: Color-Coded Stopper

• Compatibility: DURAN Volumetric Flasks and Laboratory Glassware

• Reusable: Yes

• Chemical Resistance: Excellent

• Autoclavable: No (recommended for ambient or cold applications)

• Catalog Number: 292050407

Key Features

• Made from flexible and durable polyethylene (PE)

• Color-coded for quick size and content identification

• Provides leak-proof, chemical-resistant sealing

• Smooth surface for easy handling and cleaning

• Lightweight and unbreakable alternative to glass

• Reusable for cost-efficient laboratory operations

Applications

Ideal for sealing DURAN volumetric flasks, reagent bottles, and laboratory storage containers. Furthermore, it is suitable for chemical, research, and educational laboratories requiring safe, reusable, and color-coded sealing components. Ultimately, the DURAN Plastic Stopper NS 12/21 provides reliable sealing performance and long-lasting durability for professional laboratory use.