20mm Lid with two legs, butyl rubber stopper, self-sealing injection port, reliable seals for glass vials and liquid culture jars ,100pcs

1. Freeze-drying bottle stopper 2. Double-legged freeze-drying stopper reduces the chance of freeze-drying legs sticking to each other 3. Double leg stopper provides stability and prevents bending during the lyophilization process 4. Made from high quality raw materials. Production equipment is carefully designed to produce components with excellent dimensional stability. 5. Suitable for glass bottles with a 20 mm caliber and 12-13 mm inner diameter. Freeze-drying bottle stopper Double-legged freeze-drying stopper reduces the chance of freeze-drying legs sticking to each other Double leg stopper provides stability and prevents bending during the lyophilization process Made from high quality raw materials. Production equipment is carefully designed to produce components with excellent dimensional stability. Suitable for glass bottles with a 20 mm caliber and 12-13 mm inner diameter.