Rubber Stopper No. 13 for Conical Flask – Laboratory Grade, Secure & Chemical-Resistant

The Rubber Stopper No. 13 for Conical Flask is a high-quality laboratory accessory designed to provide a tight, reliable seal for conical (Erlenmeyer) flasks during experiments, storage, and sample handling. Manufactured from durable, laboratory-grade rubber, it offers excellent elasticity, chemical resistance, and long-lasting performance in routine and advanced lab applications.

Ideal for use in clinical laboratories, research institutions, schools, universities, pharmaceutical labs, and industrial testing facilities, this rubber stopper helps prevent spills, contamination, and evaporation of samples. Its precise sizing ensures a snug fit on compatible conical flasks, supporting safe mixing, heating (non-pressurized), and temporary storage.

Key Features

• Size No. 13 – Suitable for specific conical flask neck diameters

• Laboratory-grade rubber – Flexible, durable, and reusable

• Excellent sealing performance – Minimizes leaks and contamination

• Chemical-resistant – Suitable for most common laboratory reagents

• Easy to insert and remove without damaging glassware

Applications

• Sealing conical (Erlenmeyer) flasks

• Sample storage and transport

• Mixing and preparation of solutions

• Educational, clinical, and research laboratory use

Category: Laboratory Consumables

Sub-category: Rubber Stoppers & Closures

A dependable choice for laboratories that require secure flask sealing, safety, and consistency in daily operations.