Apera GroStar pH Calibration Kit pH 4/7/10 HGC733954 can also be used as

can also be used as foliar spray)

then begin using at the rate of two teaspoons per gallon of water every other time you water

Key Features:

6' power cord with 2-prong UL plug

Apera GroStar pH Calibration Kit pH 4/7/10 HGC733954 can also be used asGroStar by Apera pH calibration kit (pH 4 7 10, 8 oz. each) Kit Includes: (1) pH 4. 0 calibration solution 8 oz. (1) pH 7. 0 calibration solution 8 oz. (1) pH 10. 0 calibration solution 8 oz. 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, double