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Includes spline roller
Vitamin B12 0
For all granulates from 1
5mm Disc sinking
What's included
D-D True Seawater Refractometer Leddy Includes spline rollerWhat is different about the D D Seawater Refractometer? Almost all hand held salt water refractometers available to the hobby are designed and calibrated for the testing of brine solutions, i. e. sodium chloride, and are not calibrated for the refractive index of natural sea water. Even though the largest percentage of salt in the sea is sodium chloride, the presence of other significant ions such as magnesium and calcium in natural sea water results
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