pH UP by General Hydroponics - 1 Quart - Raise pH of Water. pH Up by general hydroponics is a mild base solution that is perfect for raising the pH of water for gardening especially microgreens which are sensitive to the pH of water (preferring a pH of around 6). pH UP: 1 Quart Bottle Instructions on label. If you are looking for professional grade pH measurement and adjustment we recommend the pH Control Kit.

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