pH Calibration Solution Kit 3 8 oz bottles pH 4/7/10 seaweed extract Unlike fish emulsions

Unlike fish emulsions

flowers and fruit

Use Mad Farmer NUTS to stabilize pH fluctuation

Best used as an addition to potting mix

pH Calibration Solution Kit 3 8 oz bottles pH 4/7/10 seaweed extract Unlike fish emulsionsGroStar by Apera pH calibration kit (pH 4 7 10, 8 oz. each) Kit Includes: (x1) 8 oz. pH 4. 0 calibration solution (x1) 8 oz. pH 7. 0 calibration solution (x1) 8 oz. pH 10. 0 calibration solution pH measuring equipment must be cleaned and calibrated regularly to ensure accurate readings. High accuracy (0. 01 pH): standardized against NIST Certified pH references within 0. 01 pH at 25C (77F). ideal for the calibration of all pH meters Color coded,