Botanicare ID Tray 4 ft x 4 ft - Black Smart Pot they have a cotton lining

they have a cotton lining

5mls per litre Run to waste 1ml per litre Organic 1-5mls per litre

**Why You Need A Coco Specific Nutrient Formula** This new coco coir formula still has a lot in common with the original-however it has been optimized specifically for Coco Coir growers

Our patented design allows for the gentle rolling of the flower

Botanicare ID Tray 4 ft x 4 ft - Black Smart Pot they have a cotton liningThese are the same high quality trays as the industry standard Botanicare White Grow Trays, but are now also available in black. They feature the same thickness and design as their white trays. Outside Dimensions (L x W x H): 707061: 43. 5 x 25. 75 x 6. 75 707066: 40. 5 x 40. 5 x 7. 5 707091: 54 x 54 x 7 707237: 77 x 41. 5 x 7 707047: 102. 5 x 53. 25 x 7