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This item qualifies for Free Ground...
These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with nonaggressive or concentrated solutions. Low sulfur content. Withstand temperatures from -13 to 158°F (-25 to 70°C). Each stopper has its size marked in raised figures. Sold as one-pound bags.
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WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
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