Hanna pH7 Calibration Solutions -- 16 oz Shop By Brand Advanced grow tent clip fan

Advanced grow tent clip fan for precise airflow

Growonix EX200 Reverse Osmosis System for 200 GPD

crucial for maintaining plant health

With a total quantity of 300 packs

Wide Fixture Support: Runs Growers Choice CMH and DE fixtures plus ROI Series LED

Hanna pH7 Calibration Solutions -- 16 oz Shop By Brand Advanced grow tent clip fanAll Hanna pH7 calibration solution bottles come with a pH Vs. temperature chart together with the production lot # and expiration date to guarantee maximum accuracy. Formulation Hanna pH buffers are made of potassium dihydrogen phosphate and disodium hydrogen phosphate and are standardized with a pH meter calibrated to NIST primary standard buffer solutions (NIST 186Ie & 186IIe and NIST 158 g S. R. M.).