Silicone Injection Ports for Jar Lids x 12 MycoLogic

Silicone 'Self Healing' injection ports for jar lids. These allow for jars of grain spawn to be inocluated with liquid cultures without the use of a flow hood. Diameter of top disc is 12mm and size of hole in the jar lid should be 6mm. Can be push fitted, or glued in with a small amount of silicone. Autoclavable. Set of 12.