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Adamas-Beta Aquarium Marine Test Sea Saltwater Hydrometer Reef – Ocean Hydrometer Salinity Meter for Fish Tank Water…

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$10.44
Make sure this fits by entering your model number. Length: 210mm/8.27inch, accurate: 0.002, measure range: 1.000-1.060 Made of good quality borosilicate glass, it can indicate both temperature and salinity.
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