PH 4 Calibration Solution 500ml

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SKU: WE-OPTPH/#4 Category: Plant Care


These calibration solutions allow you to recalibrate a pH meter that is giving improper readings. In order to properly calibrate a pH meter, you must have a test solution with a known pH level. These solutions will have you calibrate your meter until it gives a reading of 4 or 7 that matches the bottle.

Additional information

Weight 1 lbs
Dimensions 2.5 × 2.5 × 7.75 in


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