JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.
FREE SHIPPING on orders over $50
For precise calibration of refractometers, hydrometers, and salinity/conductivity equipment, CoralVue Salinity Reference Solution is highly recommended. This solution, denoted as 28PPT, is one of the two necessary components for calibrating HYDROS Salinity Probes. Also comes in a 250mL bottle.