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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
Great for spot application
Containing L-amino acids and the right types of phosphorus and potassium
AN Overdrive 23L
1 year warranty
EN designation means environmentally friendly in that the lamp passes EPA
Bluelab pH 4.0 Calibration Solution 500 ml iPower Grow Lights Great for spot applicationpH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7. 0 first (buffer) then to pH 4. 0 (slope). Calibration Solutions should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.
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