The Charcoal Line is a thin-walled, 150g/m2 fabric one-and-done container for commercial hydroponic grow rooms. Designed for medical, recreational, or edible grow rooms, and is the fabric of choice for Controlled Environmental Agriculture (CEA). Great for use as liners in greenhouses, indoor grow rooms, and propagation. Provides excellent drainage and root pruning. Perfect for vegetables, flowers and young plants. Single-Use.