Necessary for most fermentation. Installs onto a carboy or bucket allowing CO2 to escape, while keeping bugs out.
California Proposition 65
⚠ Proposition 65 Warning: This product can expose you to chemicals that are known to the State of California to cause cancer and birth defects or other reproductive harm.
5.0
3 ratings
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Useful!
JT · May 10, 2025
Did what it was supposed to do
J
Joseph · September 1, 2024
It works as it's supposed to, a little hard to clean.