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7 mm 2 5/8" 2 3/16" 1 1/4"
Airtight Fermentation: Designed specifically for 5-gallon glass carboys commonly used in beer and wine making
6 mm 2 3/16" 1 13/16" 1 7/8"
Our Tall Traditional Silicone Bung is the reliable choice for long-term barrel maturation
while their durability ensures they can be used for years as tasting room supplies
#10 Silicone Carboy Bung & Stopper for Better Bottle (10-Pack) | Food-Grade White Silicone for Wine, Beer & Spirits | Value Pack Style:Hole - 10 Pack 7 mm 2 5/8" 2#10 Silicone Bung Stopper for "Better Bottle" Plastic Carboys 10 Pack Our #10 Silicone Stopper is the professional choice for securing Better Bottle plastic carboys and vessels with a 1 5 8" to 2" opening. Whether you need a Ventilating Bung to act as a self gassing airlock, a Bored Bung (with hole) for standard airlock attachment, or a Solid Grab Ring Bung for airtight storage, our premium food grade silicone ensures a contamination free environment