$ 11.00
Limited edition: ONLY SOME LEFT

Use Bluelab pH Up and Down to adjust nutrient solutions to the optimum range of pH and improve nutrient availability to plants. Bluelabs pH Down is made of 35 percent w/w phosphoric acid, and pH Up is made of 35 percent w/w potassium hydroxide. The premium-quality acid concentrations are easy to use in any growing system. Use undiluted with Bluelab pH Controllers and Bluelab pH Controller Connect.

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