HydroMix - 60/40 Coco Coir & Clay Pebbles 50L bagPacking: 65 bags per pallet HydroMix 60 40 blend of buffered coco coir and clay pebbles. Specification: Triple processed to ensure low EC (0. 2 0. 5) and balanced pH (6. 2 6. 8). Coco size is between 2mm 8mm Clay Pebbles size 4mm 16mm Clean and ready to use Quality certified Specification: Our coco coir is triple processed to ensure low EC (0. 2 0. 5) and balanced pH (6. 2 7. 2).