General Hydroponics

General Hydroponics

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  • GH RapidStart - 1 Gallon GH RapidStart - 1 Gallon

    GH RapidStart - 1 Gallon

    General Hydroponics

    $571.16
    RapidStart is a plant nutrient used to promote root growth while enhancing plant vigor and yield. Strong root networks are linked to larger, more vigorous plants. RapidStart helps plants develop strong root networks. It can be used throughout the...
    $571.16
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    $571.16
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  • GH Defguard Biofungicide - 1 Gal

    GH Defguard Biofungicide - 1 Gal

    General Hydroponics

    MSRP: $204.36
    $183.92
    General Hydroponics Defguard Biofungicide/Bactericide is an OMRI-listed biofungicide and bactericide for use in organic gardening that's effective against a variety of pathogens, particularly botrytis (which causes botrytis blight, or gray mold) and...
    MSRP: $204.36
    $183.92
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    MSRP: $204.36
    $183.92
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  • GH pH Down Liquid - 1 GAL

    GH pH Down Liquid - 1 GAL

    General Hydroponics

    MSRP: $31.58
    $28.42
    The acid formulation uses food-grade phosphoric acid to lower the pH to the proper level.
    MSRP: $31.58
    $28.42
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    MSRP: $31.58
    $28.42
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  • GH pH Down Liquid - 1 QT

    GH pH Down Liquid - 1 QT

    General Hydroponics

    $12.67
    The acid formulation uses food-grade phosphoric acid to lower the pH to the proper level.
    $12.67
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    $12.67
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  • GH pH Down Liquid - 8OZ

    GH pH Down Liquid - 8OZ

    General Hydroponics

    $8.56
    The acid formulation uses food-grade phosphoric acid to lower the pH to the proper level.
    $8.56
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    $8.56
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  • GH pH Up Liquid - 1 GAL

    GH pH Up Liquid - 1 GAL

    General Hydroponics

    MSRP: $31.58
    $28.42
    This Base solution is formulated using potassium hydroxide and potassium carbonate. Add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level.
    MSRP: $31.58
    $28.42
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    MSRP: $31.58
    $28.42
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  • GH pH Up Liquid - 8OZ

    GH pH Up Liquid - 8OZ

    General Hydroponics

    $8.56
    This Base solution is formulated using potassium hydroxide and potassium carbonate. Add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level.
    $8.56
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    $8.56
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  • GH pH Up Liquid - 1 QT

    GH pH Up Liquid - 1 QT

    General Hydroponics

    $12.67
    This Base solution is formulated using potassium hydroxide and potassium carbonate. Add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level.
    $12.67
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    $12.67
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  • GH pH 7.01 Calibration Solution - 1 QT

    GH pH 7.01 Calibration Solution - 1 QT

    General Hydroponics

    MSRP: $25.76
    $23.18
    General Hydroponics uses the highest-quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale). General Hydroponics‚Äö technicians check each batch to ensure that our solutions...
    MSRP: $25.76
    $23.18
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    MSRP: $25.76
    $23.18
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  • GH pH 7.01 Calibration Solution - 8OZ

    GH pH 7.01 Calibration Solution - 8OZ

    General Hydroponics

    $9.03
    General Hydroponics uses the highest-quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale). General Hydroponics‚Äö technicians check each batch to ensure that our solutions...
    $9.03
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    $9.03
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  • GH pH 4.01 Calibration Solution - 1 QT

    GH pH 4.01 Calibration Solution - 1 QT

    General Hydroponics

    MSRP: $25.76
    $23.18
    General Hydroponics uses the highest-quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale). General Hydroponics‚Äö technicians check each batch to ensure that our solutions...
    MSRP: $25.76
    $23.18
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    MSRP: $25.76
    $23.18
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  • GH pH 4.01 Calibration Solution - 8OZ

    GH pH 4.01 Calibration Solution - 8OZ

    General Hydroponics

    $9.03
    General Hydroponics uses the highest-quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale). General Hydroponics‚Äö technicians check each batch to ensure that our solutions...
    $9.03
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    $9.03
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