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This reusable 38 mm screw cap will fit our 1 gallon, 1/2 gallon jugs, and beer growlers. It is made of plastic and has a hole in the middle, which works best with our 3 piece airlock - item 7010. Perfect for small batch experiments or yeast starters. 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.
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🇺🇸 Ship from USA · On Agora since 2024
$1.69