REMARKABLE PERFORMANCE! Accubrate calibration solution is specifically formulated to calibrate refractometers to accurately measure the salinity of saltwater, reef aquariums as well as natural seawater.
ACCURATE RESULTS! Our calibration solution is formulated from a high purity blend of salts to produce accurate readings every time. Refractometers must be calibrated often to obtain accurate readings. Note: RO/DI water will not calibrate your refractometer correctly. Always use Accubrate to ensure correct salinity readings - your aquatic friends will love you.