Silicon Bung No7
Allows CO2 to Escape,But prevents air from contaminating your beer or wine.
Material: Silicon rubber.
This airlock or fermentation lock is filled partially with liquid and it sticks in the top of a drilled stopper and into the top of your fermenter.
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RETURN & REFUND POLICY
Incase of any manufacturing defects we will replace the product free of cost.
Usually delivered within 3-5 working days.