United Scientific Supplies Two Hole Rubber Stoppers

These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with nonagressive or concentrated solutions. Low sulfur content. Withstands temperatures from -13 to 158°F (-25 to 70°C). Each stopper has it's size marked in raised figures. Sold as one-pound bags.

Image(s) are representative of the product group and not necessarily the individual product.
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These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with nonagressive or concentrated solutions. Low sulfur content. Withstands temperatures from -13 to 158°F (-25 to 70°C). Each stopper has it's size marked in raised figures. Sold as one-pound bags.

Image(s) are representative of the product group and not necessarily the individual product.

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2023