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> Products > #11.5 Drilled Rubber Stopper (DRS)
Airlocks And Stoppers - #11.5 Drilled Rubber Stopper (DRS)

#11.5 Drilled Rubber Stopper (DRS)

$7.99

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The #11.5 Drilled Rubber Stopper (DRS) is a pure white gum laboratory stopper. The top diameter is 2.5", the bottom diameter is 2", and it has a 3/8" hole drilled in the center, the perfect size for an airlock. 

The 11.5 rubber stopper is also available as an #11.5 Solid Rubber Stopper (SRS).