This #7 Stopper With Hole is an essential accessory for your glass carboy.
This #7 Solid Stopper fits our 5, 6 and 6.5 gallon glass carboys. It is useful for plugging the top of your carboy post-ferment and for when you need to shift it around but don't want to spill the contents. Easy to clean and sanitize.
Top diameter 1.43 inches (36.3 mm), bottom diameter 1.19 inches (30 mm), length 1 inch (25 mm).