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pH/EC

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Regular price $2.69
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Bluelab® 2.77EC Conductivity Solutions- 18ml Bluelab calibration solution EC 2.77 18ml sachet.
Regular price $74.80
Sale price $74.80
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Say goodbye to nutrient lockout and hello to heavier harvests. Our scientists engineered pH-Up with potassium hydroxide, so you can easily achieve the ideal pH levels for optimal nutrient absorptio...
Regular price $26.99
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Say goodbye to nutrient lockout and hello to heavier harvests. Our scientists engineered pH-Down with Phosphoric Acid, so you can easily achieve the ideal pH levels for optimal nutrient absorption....
Regular price $22.90
Sale price $22.90
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Say goodbye to nutrient lockout and hello to heavier harvests. Our scientists engineered pH-Up with potassium hydroxide, so you can easily achieve the ideal pH levels for optimal nutrient absorptio...
Regular price $21.99
Sale price $21.99
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HI5036-050 is a quick calibration solution for use with Hanna's GroLine pH and/or EC/TDS meters. Using the Quick Cal function found in compatible meters allows for a single point calibration ...
Regular price $101.08
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General Hydroponics Pro pH adjusters are based on completely different technology than our traditional smaller sized adjusters offering. New non-mineral based acids and bases will not add nutrient ...