Rubber Stopper - Drilled Carboy Bung (#7.5)

#7.5 - This rubber stopper is for typical plastic carboys and fits a 1000ml flask. 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: 7.5 Top Diameter: (39mm 1-17/32') 
Bottom Diameter: (31mm 1-7/32') 
Length: (25mm 1') 
One Hole Diameter: 5mm