Description
Premium quality breathable silicone bung, designed to fit most small barrels and plastic carboys. This bung offers the additional benefit of having an "airlock mode" which can allow CO2 blow off during alcoholic or malolactic fermentations, and then can be sealed completely by pressing the center plug all the way into the bung. Dimensions are 1 7/8" upper diameter and 1 1/2" lower diameter.
Features
- More durable and tighter fitting than rubber or wood bungs
- Can be used as an airtight seal or a one way valve to allow Co2 to escape
- Designed to fit most barrels under 30 gallons