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FOWLR Beginner Saltwater Test Set (Refractometer, Salifert NO3, PO4)
Salifert$65.99Generic Refractometer - It is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the specific gravity and... -
HI782 Marine Nitrate High Range Checker - Hanna Instruments
Hanna Instruments$63.95The HI782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwater aquariums and marine applications. With a digital read out, there is no more struggling to determine colors... -
HI781 Saltwater Nitrate Low Range Checker - Hanna Instruments
Hanna Instruments$63.95Get accurate water testing results with the HI781 Marine Nitrate Low Range Colorimeter. With a digital read out, there is no more struggling to determine colors visually. This nitrate tester's compact design fits in your pocket or stores easily in... -
Compact Lab - Essentials Test Kit (5 Parameters) - Tropic Marin
Tropic Marin$63.64The test set Tropic Marin® Compact Lab includes all the important tests for prompt and precise determination of water values. The pH value, alkalinity, phosphate level, nitrite and nitrate content as well as the ammonia concentration of the... -
Nitrate Pro (NO3) High Definition Comparator Test Kit - 100 Tests - Red Sea
Red Sea$54.99Red Sea’s Nitrate Pro Test Kit is an advanced colorimetric test with comparator, measuring the level of nitrate in your reef aquarium to an exceptionally high accuracy of 0.12ppm NO3. Nitrate Pro Test Kit , when used in conjunction...