Pack of 3 Solid Rubber Bungs To Fit Glass Demi-Johns

This listing is for a pack of 3 rubber bungs without holes (stoppers) to be used with glass demijohns and fermentation carboys.

The size of our bungs are 27mm base diameter x 31mm top diameter, and they are 32mm high. All measurements approximate.

Care should be taken never to stopper a Demi John that may have pressure build inside the vessel.