Mr Hydroponic Store
pH Down 250ml
pH Down 250ml
Regular price
£7.50
Regular price
Sale price
£7.50
Unit price
/
per
pH Down (81% Phosphoric acid) 250 ml The most popular minerals used by the hobby gardener to adjust pH are phosphoric acid (to lower pH), and potassium hydroxide (to raise pH). Growth Technology pH Down is 81%Phosphoric acid and is caustic, so please handle with care. Both of these minerals are used in pH product’s and when used correctly are perfectly safe, although care should be taken as they can cause burns.