Welcome to Grow Time.

Currently, We are In-Store Pick-Up only.

Collection:

pH, EC, TDS, and PPM Control

52 products
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The acid formulation uses food grade phosphoric acid to lower the pH to the proper level. Widely recognized as a consistent and reliable product.
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The acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. Widely recognized as a consistent and reliable product.
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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 w...
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HM Digital Handheld Digital pH Meter Model #: PH-80 is an economically priced, reliable pH meter that is ideal for testing applications such as hydroponics, gardening, pools, spas, aquariums, reef ...
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The General Hydroponics pH Test Indicator can help you maintain an ideal pH level (which is between 5.5 and 6.5). This can be achieved by monitoring your pH using the super concentrated drops found...
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The HM Digital Handheld TDS-3 Tester is a reliable and accurate tool for measuring total dissolved solids in water. With its compact design and quick results, it is perfect for professionals and ex...

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