Char Coir Coirganic Coco, 50 LCoirganic Coco is a 100% certified organic growing medium made from coconut pith and fiber. Coirganic Coco received its certification from CDFA (California Department of Agriculture), the strictest organic certification in the industry. 100% Organic Coco Coir Naturally buffered Very low EC, less than 0. 6 Free of pathogens Stabilized for proper PH 6. 0 6. 5 High cation exchange capacity (CEC) for optimum nutrient uptake 50 Liter 1. 75 cu ft