Vented Silicon Bung / Stopper

The Vented Silicone Stopper works as both a stopper and an airlock.

Its four vents and pliable seal allow CO2 to escape but prevent any liquid from being sucked back from an airlock.

The diameter is 28mm at the bottom of the taper, 33mm at the top of the taper and 37mm at the flanged top.

We are happy to exchange or refund any item which does not meet the quality standards you expect. Please email us with any problem before returning items. Please note that while we are happy to exchange wrongly ordered items it is the clients responsibility to the freight costs to ship replacement items and to return the original items.