Rubber Stoppers for Laboratory Bottles - 14mm, 19mm - Reverse Rubber Caps for Reagents and Standard Bottles(No.19 50pcs)

Scope of application: Can be used for laboratory standard bottles, laboratory reagent bottles, etcSize:14 #: Plug diameter: 14mm19 #: Plug diameter: 19mmAttention: Please allow for small length deviations caused by human measurementHighly concerned about chemicals: noneOrigin: Chinese MainlandCategory: Flask

• Versatile Usage: Ideal for laboratory standard bottles and reagent bottles, ensuring secure sealing for various applications.
• Multiple : Choose from 14mm, 19mm, and 20mm diameters to fit your specific laboratory needs.
• Durable Material: Made from butyl rubber, these stoppers provide excellent resistance to chemicals and ensure longevity.
• Convenient Packaging: Available in packs of 50 or 100, perfect for laboratories requiring bulk supplies for ongoing experiments.
• Easy to Use: devised for quick and effortless sealing, these reverse rubber caps help maintain the integrity of your samples.