$2.39
! WARNING: This product can expose you to chemicals including DIBUTYLPHTHALATE, which is/are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to p65warnings.ca.gov
5 in in stock
These rubber stoppers with pre-drilled holes are essential for sealing carboys, flasks, or fermentation vessels while allowing an airlock or tubing to be inserted. Available in a range of sizes (#2 to #10), they fit various openings and are made from durable, food-safe rubber.
Perfect for homebrew and laboratory use, they ensure a tight seal while enabling gas release during fermentation. Pair them with airlocks or blow-off tubes for controlled fermentations.
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