Corning Pyrex 2962-250 Glass 250mL Hydrometer Cylinder
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<b>[Product Information]</b><br>
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<li>Reusable</li>
<li>Beaded rim, no stopper</li>
<li>Height: approximately 340mm</li>
<li>Outer diameter is approximately 39mm</li>
<li>Borosilicate Glass Code 7740</li>
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<img src='http://ecx.images-amazon.com/images/I/21YmXVupryL.jpg'></br>