PACK OF 2 - Twin Bubble Airlock and Carboy Bung Stopper fits 3, 5, 6, 6.5 Gallon Carboys
$9.99
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When filled with water allows CO2 gas to bubble out and prevents air from getting in. Enclosed design allows for slower evaporation from airlock bubble. Package contains 2 Twin bubble airlocks and 2 universal carboy bungs that will fit 3, 5, 6 and 6.5 gallon glass carboys.
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