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Salinity Salt Refractometer for Aquarium, 0-100 PPT Salinity and 1.000-1.070 SG, Hydrometer, Soft Case
Schuco Lighted Veterinary Clinical Refractometer Urine SG Serum Protein
Schuco Manual Veterinary Clinical Refractometer Urine SG Serum Protein
Schuco Veterinary Clinical Refractometer Urine SG Blood Serum Protein
SEAfractometer True Natural Salinity Reef Aquarium, Brackish LED 0-40ppt PREMIUM
SEAfractometer True Natural Seawater Salinity Refractometer Reef Aquarium 0-40pp
Spare Refractometer Rubber Eyepiece Eye for MISCO 7084VP, NISupply
Spartan A300CL Clinical Refractometer, Serum Protein, Urine SG & Refractive Index
Sper Scientific 300053 Pocket Digital Refractometer, Brix: 0 ~ 95%
Sybon Salinity Refractometer Opticon Series FG100sa
Triple Scale Honey Refractometer with Built In Calibration Knob, Bees, 58-90% Brix, Heavy-Duty + 60% Brix Calibration Fluid
True Natural Salinity Refractometer "Reef Sea Meter" for Reef Aquarium, Marine Seawater, Hydrometer
TRUE NATURAL Salinity Refractometer; Reef Aquarium, w/ Lighted Daylight Plate
USED BREWfractometer Brix 0-32% 1.000-1.140 Wort SG Beer Brew Refractometer
VST LAB Coffee Espresso and Tea III Refractometer (unbundled)
Westover Hand-held RHB Series BRIX Refractometer RHB-18 0-18% Brix