ESSENTIALS pH Down 250ml (81% Phosphoric Acid) is a quality adjuster necessary to control the pH of nutrient solutions. Concentrated for the professional grower.
Please Note: Do not store pH Up and pH Down next to each other.
Please also note that, as of October 1st 2023, Phosphoric Acid that is over 30% in strength now requires an Explosive Precursor and Poisons (EPP) licence. For more information please click this link
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