Two Little Fishies - AccuraSea Seawater Reference and Calibration Solution

• Made from pure natural sea water - the only of its kind
• Micron filtered, UV sterilized, and adjusted with RO water
• Calibration fluid can be used as a reference for test kits
• Great for checking the accuracy of swing-arm hydrometers
• Use the versatile fluid to calibrate seawater refractometers

AccuraSea Seawater Reference Solution from Two Little Fishies is the calibration solution of its kind! Made from pure natural sea water, it has been micron filtered, UV sterilized, and then adjusted with reverse osmosis water to the standard S = 35 or conductivity of 53 mS/cm at 25°C(77 =°F). This versatile fluid can be used to check the accuracy of swing-arm hydrometers, calibrate seawater refractometers, or even as a reference for test kits!