Solid Rubber Stopper #6.5
A solid and tapered rubber stopper. The #6.5 rubber stopper fits most carboys.
When placing a rubber stopper onto a carboy, the goal is to produce an airtight seal. Gently pressing the stopper into the carboy mouth will produce a seal. Do not force the rubber bung into the carboy's mouth and risk pushing it through.
- Top diameter: 34 mm
- Bottom diameter: 28 mm
- Height: 25 mm