Coolsox are designed to evenly disburse air into your grow space through hundreds of pre-perforated holes. This creates a blanket of cool air that pushes the hot air upwards and away from your plants. Coolsox can be snugly fitted around right-angle corners, up walls, across ceilings, or woven between your plants. Unlike traditional duct Coolsox collapse easily when inflated which allows you flatten them to maximise limited floor & crawl space. Available in 150 mm & 250 mm diameters. Available in 100 metre or 200 metre rolls. Simply roll out, cut and sell by the metre.