ASF Hydrometer

Essex Marine Aquatics Verified independent store

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The SeaTest Hydrometer is an easy to use scientific instrument that is used both to measure the specific weight and the density of the water in tropical marine aquariums. It is spe cially designed to provide accurate measurements of specific weight from 1.014 to 1.030 and salinity from 20 to 40 parts per thousand. Unbreakable and easy to clean. Show more