Rubber Stopper - Solid Carboy Bung (#6.5)

#6.5 - This rubber stopper is for typical glass carboys and our plastic buckets.

Rubber stoppers provide an air-tight seal to carboys, necessary for proper fermentation. BPA free and made out of Food Grade materials.

Maximum Temperature: 70°C (158°F).
Size: 6.5 Top Diameter: (34mm 1-11/32') 
Bottom Diameter: (27mm 1-1/16') 
Length: (25mm 1') 

This bung is solid. There is no hole for an airlock.