20mm Red Vial Rubber Stoppers (100 Count) Mushroom Self Healing Injection Ports Solid Seal, for Glass Vial and Liquid Culture Jars, Can Be Sterilized by Steam and Repeated Used

Description

🔴 Seal the deal with confidence—your culture’s best defense!

These 20mm red mushroom-shaped rubber stoppers are crafted from heat-stable butyl rubber, providing a self-healing, airtight seal for 20mm glass vials and liquid culture jars. They withstand steam sterilization under high pressure, are reusable without losing shape, and are perfect for professional lab and home cultivation setups.