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Bluelab Grower's Toolbox - Limited Edition
Special Price $168.69 Regular Price $198.46
Out of stock
Bluelab® pH Pen and Bluelab® ppm Pen. These clever little pens make it easy to measure the nutrient uptake (pH), the amount of food available (ppm) and the solution temperature, so you can create the best nutrient environment for your plants’ growth.