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Aquarium Refractometer

Aquarium Refractometers


Aquarium refractometers and hydrometers measure the specific gravity (density) of water, which is determined by the amount of salt saturation. Refractometers are more accurate, so they are a good investment for the committed saltwater fish hobbyist. Keep your salinity constant by replacing evaporated water on a regular basis. (Do not use saltwater for top-offs, rather use it only for water changes - salt doesn't evaporate.)

Milwaukee Instruments Seawater (Salinity) Refractometer

milwaukee digital refractometer
Price: $144.99
Our Price: $109.99
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Milwaukee Instruments Digital (Salinity) Refractometer - ARE YOU TIRED OF CALIBRATING YOUR REFRACTOMETER? GO DIGITAL!
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JBJ C-Scope Salinity Refractometer W/ Auto Temp. Calibration

JBJ C-Scope Salinity Refractometer With Auto Temp. Calibration
Price: $99.99
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JBJ C-Scope Salinity Refractometer With Auto Temp. Calibration - From the fine line of quality JBJ products is the JBJ C-Scope Salinity Refractometer, measures your saltwater aquarium with precise accuracy. The C-Scope refractometer is designed for testing the concentrations of saltwater by providing a direct reading of the speciific gravity and salinity in ppt.
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Coralife Deep Six Hydrometer

Coralife Deep Six Hydrometer
Price: $9.99
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Coralife Deep Six Hydrometer - Precision hydrometer tests both salinity and specific gravity accurately and without getting your hands wet.
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OCReef Pro Salinity Refractometer

MilWaukee Salinity Refractometer
Price: $89.99
Our Price: $29.99
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OCReef Pro Salinity Refractometer - Specifically designed for saltwater aquarium use, for measuring the salinity of Natural Seawater. Includes: Precision Honed Inner Lens, and Black Soft Carrying Case. Comes with either a blue grip handle or a black grip handle, depending on stock available when the order is placed.
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