pH Down 30% by Growth Technology allows you to quickly reduce the pH level of your nutrient solution. This is a relatively less powerful formula than Growth Technology’s former pH Down (discontinued) but a small amount can still have a huge effect on your grow.

Correctly aligned, your pH levels dramatically increase your plant’s access to nutrients, their ability to grow, and their capacity to yield. As it is highly concentrated, pH Down is a fantastically efficient product and its phosphoric acid content of 30% maintains exceptional stability.

Such high acid concentration and inherent strength means pH Down does require careful handling, close adherence to directions, and it is best diluted in minimal quantities before gradual application.

• Decreases the pH of your nutrient solution
• Powerful pH adjuster with 30% phosphoric acid content
• High fidelity, highly concentrated formula
• Use with care

Order and pay online before 1pm for free, same-day, in-store collection (Mon to Sat).

Order and pay online after 1pm, or on a Sunday, or on a Bank Holiday for free, next-day, in-store collection.

* Please await your ‘Order Ready’ email before setting out to collect your order. *

On orders over £99 we offer free standard U.K. delivery* within 1-3 days of your order being placed.

Your goods will be transported securely, discreetly, and with tracking to ensure you have the best possible idea of when they’ll be delivered.

*exclusions and surcharges may apply, please see full Delivery Information for details.