These Rubber bungs are ideal for plugging joints or holes in glassware and creating a liquid-tight seal. It can be used with glass containers such as carboys, jugs, demijohns, and many other pieces of standard equipment. Made from natural rubber that provides excellent resistance to chemicals, absorption, ozone, sunlight aging, low temperature, and compression set. These stoppers are available in different sizes to suit your needs.

Keep in mind that the bigger sizes are designed in a long style with recessed.