$ 0.79
Food-grade rubber stoppers with 3/8in hole for homebrewing, winemaking or any food and beverage use. Fits all standard airlocks. Available in sizes #2 to #13. BPA-free.
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A traditional fermentation airlock will allow gas to escape during fermentation. Simply fill part-way with water and affix this S-shape airlock to the fermenter with a drilled rubber stopper. Airlock consists of body and removable dust cap.
$ 3.89
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