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| | Name: | Nalgene | | Model: | Polymethylpentene Hydrometer Cylinder | | Description: | One piece unit is made of transparent polymethylpentene (PMP) which has superior chemical resistance and an upper temperature limit of 135°C. |  |
| | Name: | Pyrex® | | Model: | Glass Hydrometer Cylinder | | Description: | Breakage is minimized by the heavy wall construction. The large hexagonal base, sealed to the cylinder body, increases stability. Meets ASTM specifications D287 and E100. |  |
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