| Expiration Date | DoesNotApply |
|---|---|
| Brand | General Hydroponics |
| Type | pH Calibration Solution |
| Form | Liquid |
| Volume | 1 quart |
| Organic | No |
| Ingredients | DoesNotApply |
| Packaging | Bottle |
| Compatible Plant Type | AllPurpose |
| Material Basis | DoesNotApply |
Check the listing for details. General Hydroponics pH 4.01 Calibration Solution, 1 Qt. -For pH Meter Reference. Condition: New. Listed at 21.89 USD. At General Hydroponics, growing is at the heart of who we are and everything we do. We live it and breathe it. We take inspiration from those who refuse to follow the rules. We believe in the underdogs.
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