Final Product:Beer Condition:New All returns accepted:Returns Accepted Refund will be given as:Money back or replacement (buyer's choice) Type:Twin Bubble Return shipping will be paid by:Buyer Item must be returned within:30 Days
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. These are a universal carboy bung for glass carboys mainly. 1 1/8th” to 1 1/2″ diameter.
