Vitalink PH Down Water Stabiliser 1 Litre Hydroponics

1 Litre of phosphoric acid used to lower the ph of nutrient solutions.

Vitalink pH adjusters work simply by altering the pH of a solution. If the current pH is at 5 (slightly acidic) a solution of alkaline (pH UP) is added to raise the solution to the desired level. 

Standard pH adjusters, highly concentrated and favoured by professional growers using large reservoirs.