Bungs & Grommets - Wine Making | League of Brewers NZ

$2.70

Tophat Grommet

The top-hat or T-shaped grommet is a popular choice for use with an airlock in a fermenter lid. Tophat grommets are more robust than the black doughnut shape alternatives which can become damaged, however they are more easily popped out if there is excessive pressure build up in your fermentation vessel due to a blocked airlock.

$7.60

Bored Bung 19mm - 26mm

Bored Bung 19mm (Barrel) (19mm to 27mm) - red rubber with an airlock hole.

Compatible with the Mangrove Jack's Stainless Stell fermenter.

$4.50

Demijohn Solid Bung 28mm-30mm (23L Jar) (28mm to 32mm)

Fits 23l glass carboys and 5L demijohns.

$7.40

Thermometer Bung 22mm. Black (22mm to 28mm)

Thermometer Bung 22mm. Black (22mm to 28mm). This bung has a smaller diameter bore than a standard bored bung, which makes it suitable for mounting a 30cm Glass Thermometer (available separately).

Black Grommet for airlock hole in fermenters

$0.95

Black Grommet for airlock hole in fermenters

A "doughnut" shaped black grommet for the standard airlock hole in plastic fermenters. Compatible with both Senior and Vintage airlock type. Has a centre groove which allows it to clip into the fermenter lid, making it more resistant to being pushed out if pressure builds up during fermentation.

Rubber stopper / bored bung. #10 w/airlock hole (for plastic carboy)

$8.10

Rubber stopper / bored bung. #10 w/airlock hole (for plastic carboy)

Rubber stopper / bored bung #10 with airlock hole.

Fits our 11.5l & 23l plastic foodgrade PET carboys perfectly.
#10 size is a standard bung size, in this case 41mm diameter across on the small side, going to 51mm on the wider side.

$4.10

Bored Bung 28-30mm

Demijohn Bored Bung 28-30mm - with an airlock hole.

Fits perfectly a 5l (FLIP TOP ONLY) glass demijohn for a tight seal.
Not compatible with the wide mouth screw top demijohns.

Typically made from rubber or silicon.