TerraBloom 4" Air Duct - 25 FT Long, Silver Flexible Ducting with 2 Clamps

Product Specifications: 4" Diameter and 25' Length Flexible 2 Layer Design (Aluminum + Plastic Layer) Easy Installation with 2 Stainless Steel Clamps (Included) Safe Carton Packaging Product Description: This Flexible Aluminum Air Duct is designed for use with 4" inline fans for a wide range of household and horticultural applications. It can be used to transfer air in and out of the rooms, grow tents, attics, basements etc. The duct's  flexible design and included clamps make this product easy to install for your particular needs.