Extend the reach of your drying and ventilation equipment with our Layflat Ducting (precut). Lightweight but durable 4-mil polyethylene and unaffected by moisture and most chemicals. Ideal for use with air scrubbers, negative air machines, and dehumidifiers. Package includes ten precut 10 ft. lengths of 16 in. layflat ducting for use on 10 in. duct rings.