A breathable Silicone stopper that acts as both a stopper and an airlock. Unique design allows CO2 pressure to escape but keeps Oxygen and airborne contamination out. This quickly became our stopper of choice for wine, and is a popular style used by numerous commercial wineries.
- Fits 3, 5, 6 & 6.5 gallon glass carboys, 1 gallon bottles, growlers, and 500 mL flasks.
- Replaces Stopper Sizes #6, #6.5, #7, #8
- Stopper Measurements: 0.94" x 1.48" (24 mm x 37.5 mm)
- The flapper stopper protrudes roughly 2.5" from the stopper to allow for easy assembly
Other available sizes include the Universal Breathable Bung and the Breathable Barrel Bung. All three size options can be purchased in one complete bundle with the Breather Bung Pack.