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United Scientific Stirring Rods with Rubber Policeman:Hotplates and Stirrers:Stirring | Fisher Scientific
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United Scientific GRPL12 Glass Stirring Rods with Pre-Assembled Rubber Policeman, 304.8mm Length, 10mm Diameter (Pack of 12): Science Lab Stirring Rods: Amazon.com: Industrial & Scientific
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United Scientific GRPL10 Glass Stirring Rods with Pre-Assembled Rubber Policeman, 254mm Length, 6mm Diameter (Pack of 12)
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