<ul><li>More durable and tighter fitting than rubber or wood bungs</li><li>Can be used as an airtight seal or a one way valve to allow Co2 to escape</li><li>Designed to fit most barrels between 30 and 60 gallons</li><li>Package Weight : 1 pounds</li></ul><br><br>Product Type is premium breathable silicone bung for barrels and variable volume tanks (Pack of 10). 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 between 30 and 60 gallons.

Premium Breathable Silicone Bung for Barrels and Variable Volume Tanks (Pack of 10)