Product Description

Two piece design Barrel Bung with an open vent and easy grab rim can be used for barrel fermentation, allowing CO 2 to escape from the barrel or fermenter. When the center silicone piece is pushed in and locked, it can be use as a solid bung for aging.  Comes apart for cleaning.  Make sure this will fit your barrel or fermenter:  Dimensions are 2 1/8″ tapering down (V) to 1 13/16″.  Silicone bungs offer a number of advantages over traditional rubber or even wood bungs. They are more durable, grippier and tighter fitting.  These bungs won’t stain, carry infection, or absorb wine odors over time.

When the two-piece is set to the open position, the bung acts as an airlock and allows the release of CO2 while maintaining a seal against oxygen coming in. This makes the bung ideal for alcoholic or malolactic fermentation. When fermentation is over and you no longer want the bung to “breath” out, you just push the center cap into the bung to create a firm seal and the airlock bung becomes a solid stopper!

Product Features

• Lift up for Airlock – Push down for Sealing
• Silicone bungs are more durable, grippier and tighter fitting than rubber bungs
• Comes apart for cleaning and sanitizing
• Fits Holes 2 1/8″ down to 1 13/16″
• Silicone material won’t stain, carry infection, or absorb wine odors over time.