GroStar pH calibration kit (pH 4/7/10, 8 oz. each) Hydroponic Item Size: D24xH64 inch

Item Size: D24xH64 inch

amino acids and B1 to further increase growth and supplement further yield increases

Grows very well using 50 percent hardwood sawdust

Roots Organics Nitro Bat Guano is an excellent source of nitrogen

Will not clog drippers or sprayers

GroStar pH calibration kit (pH 4/7/10, 8 oz. each) Hydroponic Item Size: D24xH64 inchProduct Details GroStar 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