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| | Name: | Bellwether | | Model: | % Saturation Salt (NaCl) Hydrometer | | Description: | Bellwether hydrometer graduated for percentage sodium chloride saturation of water. |  |
| | Name: | Bellwether | | Model: | % By Weight Salt (NaCl) Hydrometer | | Description: | Bellwether hydrometer graduated in percent by weight of sodium chloride in solution. | |
| | Name: | Ertco | | Model: | Plastic Salt Hydrometers | | Description: | Plastic hydrometers are fabricated from polycarbonate (PC), which makes the instrument shatterproof, while offering glass-like clarity for ease of reading. |  |
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