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Rubber bung used with an airlock. Insert it into the Flex lid with the airlock to create a tight seal during fermentation. Airlock sold separately. Universal rubber bung Fits the hole on the Flex Lid or any 1.5” TC port Tapered design
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We currently ship within the US, with more countries coming soon.
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🇺🇸 Ship from USA · On Agora since 2026
$7.20