ROWAcarbon contains extremely low levels of Phosphate, unlike many low cost carbon products on the market place which are washed in phosphoric acid as a final stage of preparation and which can release high levels of phosphate into the water. 

ROWAcarbon contains extremely low levels of Phosphate, unlike many low cost carbon products on the market place which are washed in phosphoric acid as a final stage of preparation and which can release high levels of phosphate into the water.