20 mm Self Healing Port (5 pieces)

You use these 20 mm rubber seals to make self -healing injection gates in lids from Mason Jars or medicine bottles. Specially made for the production of Liquid Cultures.Simply drill a hole in a metal or plastic lid and the Self Healing Ports fit exactly. Put the injection needle through the gate to inject or extract the Liquid Culture sterile and without a risk of infection without removing the lids from breeding pots. This way you work completely sterile and the chance of contamination is nil. The Self Healing Ports fit on an opening with a diameter of 13 mm.