Plastic Airlock with Rubber Bung

Plastic Airlock Bubbler with 1 Gallon Rubber Bung

For use with plastic or glass Demijohn.

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  Great product, very useful!  This fits on the demijohn bottle and it does its job well too! It would be great if the airlock came up with simple instructions... even a few lines would do. I was a first user and thus filled it up completely with (cooled) boiled water. Thus, the CO2 released pushed the water outwards...   Joao Paulo Cota - Mitcham

  Good product   I like the idea of these plastic ones over glass as they are safer very easy to use   Roger Seymour - Chelmsford