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The same upgradeable feature like Hydro-X gives you the ability for life-time improvements
Give your garden the boost it needs
Heavy-duty galvanized steel housing with a durable powder-coated finish
The HCS-1 is the brain of the Hydro-X system
Apera GroStar pH Calibration Kit pH 4/7 JSAR50 The same upgradeable feature likeGroStar by Apera pH calibration kit (pH 4 7, 8 oz. each) Kit includes: (1) 8 oz. pH 4. 0 calibration solution (1) 8 oz. pH 7. 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, double sealed, 1 year shelf life Expiration date