Rubber lab stoppers: RubberMill provides one hole lab stoppers, two hole lab stoppers and solid laboratory stoppers.

RubberMill produces rubber stoppers for the scientific, commercial and industrial markets.  Our standard grade stoppers are manufactured from a premium grade SBR black rubber compound.  The 40 ± 5 durometer material is soft, pliable and long lasting.  Solid, one-hole and two-hole stoppers are stocked for immediate shipment.

Please select from the following options and click for more information on our standard stopper sizes.
Solid Stoppers
One Hole Stoppers
Two Hole Stoppers

In addition to our standard stocked items, we manufacture custom stoppers in all durometers and compounds. Tapered rubber stoppers are the most common configuration, but we can provide any shape bung or stopper you need for labware, bottles, boiler tubes, flasks, test tubes or similar containers. Contact us for more information.