Description

General Hydroponics' 8 oz 1500 ppm NaCl standard reference solution is specifically formulated for use with electronic TDS meters but can be used with most TDS meters. When growing hydroponically, it is important to make sure your nutrient solution's ppm level is accurate for the health of the plants. Use General Hydroponics' 1500 ppm NaCl standard reference solution to calibrate your TDS meter and know that your nutrient solution ppm will be perfect for every crop you grow.