This bung has ventilation holes on the top with a silicone flap that lays tight to the surface. Gases from fermentation can escape through the holes and flap and no contaminants can get in.
Sized to fit plastic carboys.
This bung has ventilation holes on the top with a silicone flap that lays tight to the surface. Gases from fermentation can escape through the holes and flap and no contaminants can get in.
Sized to fit plastic carboys.