Bungs from Getting Started
Fall Bright, The Winemakers Shoppe

Buon Vino "hollow core"  

We call these Hollow Core and you can see why.  They fit a wider range of necks due to the longer body length.  They stay in well if you dry the jug and the bung off well first.  If you use the white gum bungs, allow a range of sizes in your collection to fit different jugs of the same size.  Not all necks are the same.  The most popular sizes for a 5 gallon jug are numbers 6.5 and 7.  Get Both!

We also have small bungs (2,3) to fit wine bottles for topping fermentations. 

We carry a line of tapered  corks:  number 14 for gallon jugs and
number 16 for carboys.  We also have the solid tapered corks in wee sizes to number 28 or 30.