Dimensions:
| Top Diameter | 50 mm |
|---|---|
| Bottom Diameter | 43 mm |
| Length | 26 mm |
Size 10 tapered, rubber stopper (bung) with a 9mm hole in the center to allow for an airlock. The #10 size is common for wide-mouth glass carboys, as well as common PET-style fermenters, similar to hard plastic water jugs.