Description
Features:
- Used for 20mm glass vial and liquid culture jars, fit about 13mm diameter opening(Please refer to the picture).
- Self Healing Rubber Stoppers----Can create a great solid seal.
- Excellent Heat Stability (Butyl Rubber)-----Can be sterilized by steam under high pressure.
- It is reusable and not out of shape.
- Great for liquid culture, BRF Jars, injection, Supplemented substrate jars, Grain Masters