Description:

The Universal Octagonal Plastic Stopper offers a secure and recyclable sealing solution designed for laboratory and industrial applications requiring precision and compatibility. Manufactured from durable polyethylene, this stopper features an octagonal profile with a tapered design—measuring 14–15mm at the top and 11–12mm at the bottom—to ensure firm friction-fit closure across various glassware and tubing diameters. The cone-shaped structure provides a tight seal while allowing easy insertion and removal, ideal for use in test tubes, jointed glassware, distillation setups, and sample storage. With an overall height of 28mm and a cone height of 22mm, this stopper supports containment without compromising access. Fully recyclable and chemically resistant, it aligns with sustainability protocols and long-term usage in high-throughput environments. Sold individually, the Universal Stopper is a compact, cost-effective choice for labs seeking reliability, reusability, and safety in their sealing components.