Rubber Stopper - Drilled Carboy Bung (#7)

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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 T op Diameter: (37mm / 1-3/7") Bottom Diameter: (30mm / 1-3/16") Length: (25mm / 1") One Hole Diameter: 5mm Show more