Features
This rubber grommet fits a 1/2" hole leaving you with a 3/8" ID, perfect for an air lock.
More options
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Potassium Sorbate$ 3.5
1016 -
Turbo Carbon$ 6.95
1039 -
Pectic Enzyme 1oz$ 3.1
1167 -
3 piece Airlock$ 1.75
2176 -
Turbo Clear Fining Agent$ 5.5
1195
