#5 Drilled Rubber Stopper (DRS)

$0.99

Our #5 Drilled Rubber Stopper (DRS) is a pure lab stopper and has a top diameter of 1 1/16", a bottom diameter of 15/16", and a 3/8" hole drilled in the center, perfect for an airlock.

The #5 rubber stopper is also available as a #5 Solid Rubber Stopper (SRS).