#8 Drilled Rubber Stopper (DRS)

$1.75

This #8 Drilled Rubber Stopper (DRS) is a pure white gum laboratory stopper and has a top diameter of 1 5/8", a bottom diameter measuring 1 3/8", and it has a 3/8" hole drilled in the center, a perfect size for an airlock

This #8 rubber stopper is what you want to use with wider-mouthed gallon jugs and is also available as a #8 solid rubber stopper (srs).