HUGE 54L DEMIJOHN BUNG #13.5 ~75mm Straight Sided Drilled Red Rubber Bung 3″ Top 3″ Bottom with 3/8″ Hole for Airlock and 1/8″ Lip

STRAIGHT sided 3″ across red rubber bung to seal a 54l demijohn carboy mouth for beer or wine fermentation.  Made of food safe red rubber, the stopper has a drilled 3/8 hole at the center. This can be plugged with a #000 stopper to seal your demi or used to hold an air lock or other fermentation accessory like a blow-off tube that allows for a one-way gas exchange.  Will fit many vintage glass Demijohns. If it doesn’t fit your demi, try using it upside-down.  Top has a lip that sticks out 1/8″ to prevent the stopper slipping down inside the demjohn. The stopper is 3″ across and 2″ deep. Metric across diameter is approx 75mm. Measurements were taken by hand and are close approximate.  Please measure your demi-john mouth before ordering.  This stopper fits a 3″ opening.