Hanna pH 7.01 Calibration Solution, 20 ml, case of 25 grow-light-bulbs Measurement Range: 0-14 pH

Measurement Range: 0-14 pH

which leads to greater root growth and less water usage

for directing light more precisely over a growing area

Stealth-RO300™ with upgraded KDF 85 filter

and ethylene

Hanna pH 7.01 Calibration Solution, 20 ml, case of 25 grow-light-bulbs Measurement Range: 0-14 pHpH 7 is the most frequently used pH buffer. All Hanna 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 158g S. R. M.).