Get it by Sunday October 1st by choosing the expedited option during checkout.
Twin Bubble Airlock with Carboy Bung
Allows for slower evaporation
Universal Carboy Bung for 3, 5, 6 and 6.5 Gallon Glass Carboys
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.