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Ships within 48 hours · Estimated delivery Aug 27 - Sep 1
It is recommended to be used within 30 days of opening
Sclerotinia
5 is considered too alkaline for most hydroponic gardens
CORRECT MINOR N & K DEFICIENCIES
Hanna Instruments GroLine 1.41 mS/cm Conductivity Standard, 230mL HPS & MH Grow Light Bulbs It is recommended to beHI7031 023 is a GroLine 1,413 S cm conductivity standard that is prepared against a NIST traceable potassium chloride solution and supplied with a certificate of analysis. Hanna conductivity solutions have the lot number and expiration date clearly marked on the label and are air tight with a tamper proof seal to ensure the quality of the solution. Hanna's line of conductivity standards have been specially formulated to have an expiration of 5 years
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