Collection:
pH, EC, TDS, and PPM Control
52 products
General Hydroponics pH Down Liquid 1-Quart
The acid formulation uses food grade phosphoric acid to lower the pH to the proper level. Widely recognized as a consistent and reliable product.
General Hydroponics pH Down Liquid 1-Gallon
The acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. Widely recognized as a consistent and reliable product.
General Hydroponics pH up Liquid 1-Quart
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...
HM Digital PH-80 pH & Temperature Water Test Meter
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 ...
General Hydroponics pH Test Kit 1oz
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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HM Digital Handheld TDS-3 Tester
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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