Contains 1 x Air Lock Grommet And 1 x Blanking Grommet
Fits Balliihoo And Vinclasse Fermenting Buckets As Well As Plastic Demijohns Which Have A 13mm Hole. As These Are Soft Rubber, The Inner Hole, While Initially Smaller, Will Stretch To Give An Airtight Seal To Airlocks With A Diameter Of Between 9mm to 10.5mm.
If You Are Adapting A Plastic Vessel To Accept An Airlock, You Will Require A Precise 13mm Hole And The Wall Thickness Must Not Be More Than 2mm
Not Suitable For Glass Bottles Or Glass Demijohns, For These See Our Range Of Rubber And Cork Bungs
A simple accessory that plays its part in the production of a perfect wine or brew, by providing an airtight seal with an airlock or simply capped off with no airlock, it can double as a pressure release cap avoiding partial unsealing or removal of the vessel lid thus preventing the risk of drawing in of Airbourne Bacteria.
There is now a hole punch available for putting an airlock Grommet in the lid and a drill bit for adding a tap.